User:PK2/Documentation for cite encyclopedia

{{High-use}} {{cascade-protected template}}

Citation Style 1 templates

{{Cite arXiv}}	arXiv preprints
{{Cite AV media}}	audio and visual media
{{Cite AV media notes}}	AV media liner notes
{{Cite bioRxiv}}	bioRxiv preprints
{{Cite book}}	books and chapters
{{Cite CiteSeerX}}	CiteSeerX papers
{{Cite conference}}	conference papers
{{Cite document}}	short, stand-alone, offline documents
{{Cite encyclopedia}}	edited collections
{{Cite episode}}	radio or TV episodes
{{Cite interview}}	interviews
{{Cite journal}}	academic journals
{{Cite magazine}}	magazines, periodicals
{{Cite mailing list}}	public mailing lists
{{Cite map}}	maps
{{Cite medRxiv}}	medRxiv preprints
{{Cite news}}	news articles
{{Cite newsgroup}}	online newsgroups
{{Cite podcast}}	podcasts
{{Cite press release}}	press releases
{{Cite report}}	reports
{{Cite serial}}	audio or video serials
{{Cite sign}}	signs, plaques
{{Cite speech}}	speeches
{{Cite SSRN}}	SSRN papers
{{Cite tech report}}	technical reports
{{Cite thesis}}	theses
{{Cite web}}	web sources not covered by the above
See also	Specific-source templates Citation Style 1 wrapper templates

This Citation Style 1 template is used to create citations for articles or chapters in edited collections such as encyclopedias and dictionaries, but more generally any book or book series containing individual sections or chapters written by various authors, and put together by one or more editors. However, it is not intended for journals or magazines, which are issued periodically and have volume and (usually) issue numbers, and should be cited with {{Cite journal}} or {{Cite magazine}}; nor is it intended for conference proceedings, which should be cited with {{Cite conference}}.

Some citations to tertiary sources such as encyclopedias are problematic; see Wikipedia:Identifying and using tertiary sources.

Usage

Copy a blank version to use. Almost all parameter names are supported only in lower case (some initialisms, such as |isbn= have upper-case aliases like |ISBN=, which are acceptable for use). Use the "|" (pipe) character between each parameter. Unused parameters may be deleted to avoid clutter in the edit window. Some samples on this documentation page may include the current date. If the date is not current, then the page.

Most commonly used parameters in horizontal format

To cite an encyclopedia article with a credited author {{cite encyclopedia |last= |first= |date= |title= |url= |encyclopedia= |location= |publisher= |access-date=}} To cite an encyclopedia article with no credited author {{cite encyclopedia |author=<!-- not stated --> |date= |title= |url= |encyclopedia= |location= |publisher= |access-date=}} To cite an online encyclopedia article that has been archived {{cite encyclopedia |last= |first= |date= |title= |url= |encyclopedia= |location= |publisher= |url-status= |archive-url= |archive-date= |access-date=}} To cite an encyclopedia article written in a foreign language {{cite encyclopedia |last= |first= |date= |title= |url= |trans-title= |encyclopedia= |language= |location= |publisher= |access-date=}} To cite and quote an archived, two-author, foreign language encyclopedia article re-published as a PDF on an information aggregation service requiring a subscription {{cite encyclopedia |last1= |first1= |last2= |first2= |date= |title= |url= |trans-title= |encyclopedia= |language= |location= |publisher= |url-status= |archive-url= |archive-date= |access-date= |via= |quote=}}

Full parameter set in horizontal format

{{cite encyclopedia |last1= |first1= |author-link1= |last2= |first2= |author-link2= |display-authors= |author-mask1= |author-mask2= |collaboration= |df= |date= |year= |orig-date= |orig-year= |chapter= |script-chapter= |chapter-url= |chapter-url-access= |trans-chapter= |chapter-format= |location= |editor-last1= |editor-first1= |editor-link1= |editor-last2= |editor-first2= |editor-link2= |display-editors= |editor-mask1= |editor-mask2= |title= |script-title= |title-link= |url= |url-access= |trans-title= |format= |encyclopedia= |script-encyclopedia= |trans-encyclopedia= |department= |type= |series= |language= |volume= |interviewer-last1= |interviewer-first1= |interviewer-link1= |interviewer-last2= |interviewer-first2= |interviewer-link2= |display-interviewers= |interviewer-mask1= |interviewer-mask2= |translator-last1= |translator-first1= |translator-link1= |translator-last2= |translator-first2= |translator-link2= |display-translators= |translator-mask1= |translator-mask2= |others= |name-list-style= |edition= |publication-place= |publisher= |publication-date= |minutes= |time-caption= |time= |page= |pages= |at= |no-pp= |arxiv= |asin= |asin-tld= |bibcode= |bibcode-access= |biorxiv= |citeseerx= |doi= |doi-access= |doi-broken-date= |eissn= |hdl= |hdl-access= |isbn= |ismn= |issn= |jfm= |jstor= |jstor-access= |lccn= |medrxiv= |mr= |oclc= |ol= |ol-access= |osti= |osti-access= |pmc= |pmc-embargo-date= |pmid= |rfc= |sbn= |ssrn= |s2cid= |s2cid-access= |zbl= |id= |url-status= |archive-url= |archive-format= |archive-date= |access-date= |via= |quote-page= |quote-pages= |quote= |script-quote= |trans-quote= |mode= |ref= |postscript=}}

Most commonly used parameters in vertical format

To cite an encyclopedia article with a credited author {{cite encyclopedia |last = |first = |date = |title = |url = |encyclopedia = |location = |publisher = |access-date = }} To cite an encyclopedia article with no credited author {{cite encyclopedia |author = <!-- not stated --> |title = |url = |encyclopedia = |location = |publisher = |date = |access-date = }} To cite an online encyclopedia article that has been archived {{cite encyclopedia |last = |first = |date = |title = |url = |encyclopedia = |location = |publisher = |url-status = |archive-url = |archive-date = |access-date = }} To cite an encyclopedia article written in a foreign language {{cite encyclopedia |last = |first = |date = |title = |url = |trans-title = |encyclopedia = |language = |location = |publisher = |access-date = }} To cite and quote an archived, two-author, foreign language encyclopedia article re-published as a PDF on an information aggregation service requiring a subscription {{cite encyclopedia |last1 = |first1 = |last2 = |first2 = |date = |title = |url = |trans-title = |format = |encyclopedia = |language = |location = |publisher = |url-status = |archive-url = |archive-date = |access-date = |via = |url-access = |quote = }}

Full parameter set in vertical format

Parameters	Prerequisites	Brief instructions / notes		Vertical list
last1		Author's last name or single name author. Don't link.		{{cite encyclopedia |last1 = |first1 = |author-link1 = |last2 = |first2 = |author-link2 = |display-authors = |author-mask1 = |author-mask2 = |collaboration = |df = |date = |year = |orig-date = |orig-year = |location = |editor-last1 = |editor-first1 = |editor-link1 = |editor-last2 = |editor-first2 = |editor-link2 = |display-editors = |editor-mask1 = |editor-mask2 = |chapter = |script-chapter = |chapter-url = |chapter-url-access = |trans-chapter = |chapter-format = |title = |script-title = |title-link = |url = |url-access = |trans-title = |format = |encyclopedia = |script-encyclopedia = |trans-encyclopedia = |department = |type = |series = |language = |volume = |interviewer-last1 = |interviewer-first1 = |interviewer-link1 = |interviewer-last2 = |interviewer-first2 = |interviewer-link2 = |display-interviewers = |interviewer-mask1 = |interviewer-mask2 = |translator-last1 = |translator-first1 = |translator-link1 = |translator-last2 = |translator-first2 = |translator-link2 = |display-translators = |translator-mask1 = |translator-mask2 = |others = |name-list-style = |edition = |publication-place = |publisher = |publication-date = |minutes = |time-caption = |time = |page = |pages = |at = |no-pp = |arxiv = |asin = |asin-tld = |bibcode = |bibcode-access = |biorxiv = |citeseerx = |doi = |doi-access = |doi-broken-date = |eissn = |hdl = |hdl-access = |isbn = |ismn = |issn = |jfm = |jstor = |jstor-access = |lccn = |medrxiv = |mr = |oclc = |ol = |ol-access = |osti = |osti-access = |pmc = |pmc-embargo-date = |pmid = |rfc = |sbn = |ssrn = |s2cid = |s2cid-access = |zbl = |id = |url-status = |archive-url = |archive-format = |archive-date = |access-date = |via = |quote-page = |quote-pages = |quote = |script-quote = |trans-quote = |mode = |ref = |postscript = }}
first1	last1	Author's first name. Don't link.
author-link1	last1	Title of Wikipedia article about the first author. Don't link.
last2	last1	Like last1, but for 2nd author. Don't link. Similar: last3, etc.
first2	last2	Like first1, but for 2nd author. Don't link. Similar: first3, etc.
author-link2	last2	Like author-link1, but for 2nd author. Don't link. Similar: author-link3, etc.
display-authors	last1	Number (number of authors displayed) or etal (more authors)
author-mask1	last1	See Display options below; not for lists of cited works
author-mask2	last2
collaboration	last1
df
date
year
orig-date	date or year
orig-year	date or year
chapter		This should be the title of the chapter cited. Do not wikilink chapter if chapter-url is provided.	Note that if defined, these parameters become the third ones of this template in place of title-related parameters, while title-related parameters swap places with location- and editor-related parameters, encyclopedia- and department-related parameters also swap places with each other, and trans-encyclopedia won't display.
script-chapter
chapter-url	chapter or script-chapter
chapter-url-access	chapter-url
trans-chapter	chapter or script-chapter
chapter-format	chapter-url
location	publisher	can be used for written-at location when publication-place is used for publication place	Note that if the parameter chapter is defined, these parameters swap places with title-related parameters.
editor-last1		Like last1, but for editor. Don't link.
editor-first1	editor-last1	Like first1, but for editor. Don't link.
editor-link1	editor-last1	Like author-link1, but for editor. Don't link.
editor-last2	editor-last1	Like last1, but for 2nd editor. Don't link. Similar: editor-last3, etc.
editor-first2	editor-last2	Like first1, but for 2nd editor. Don't link. Similar: editor-first3, etc.
editor-link2	editor-last2	Like author-link1, but for 2nd editor. Don't link. Similar: editor-link3, etc.
display-editors	editor-last1	Like display-authors, but for editors
editor-mask1	editor-last1	See Display options below; not for lists of cited works
editor-mask2	editor-last2
title		This parameter is required.	Note that if the parameter chapter is defined, these parameters swap places with location- and editor-related parameters.
script-title
title-link	title or script-title	Name of a Wikipedia article about the work. Do not use if url is provided
url	title or script-title	Do not use if title-link is provided
url-access	url
trans-title	title or script-title
format	url
encyclopedia			Note that if the parameter chapter is defined, these parameters swap places with each other, and trans-encyclopedia won't display.
script-encyclopedia
trans-encyclopedia	encyclopedia or script-encyclopedia
department
type
series
language
volume
interviewer-last1		Like last1, but for interviewer. Don't link.
interviewer-first1	interviewer-last1	Like first1, but for interviewer. Don't link.
interviewer-link1	interviewer-last1	Like author-link1, but for interviewer. Don't link.
interviewer-last2	interviewer-last1	Like last1, but for 2nd interviewer. Don't link. Similar: interviewer-last3, etc.
interviewer-first2	interviewer-last2	Like first1, but for 2nd interviewer. Don't link. Similar: interviewer-first3, etc.
interviewer-link2	interviewer-last2	Like author-link1, but for 2nd interviewer. Don't link. Similar: interviewer-link3, etc.
display-interviewers	interviewer-last1	Like display-authors, but for interviewers
interviewer-mask1	interviewer-last1	See Display options below; not for lists of cited works
interviewer-mask2	interviewer-last2
translator-last1		Like last1, but for translator. Don't link.
translator-first1	translator-last1	Like first1, but for translator. Don't link.
translator-link1	translator-last1	Like author-link1, but for translator. Don't link.
translator-last2	translator-last1	Like last1, but for 2nd translator. Don't link. Similar: translator-last3, etc.
translator-first2	translator-last2	Like first1, but for 2nd translator. Don't link. Similar: translator-first3, etc.
translator-link2	translator-last2	Like author-link1, but for 2nd translator. Don't link. Similar: translator-link3, etc.
display-translators	translator-last1	Like display-authors, but for translators
translator-mask1	translator-last1	See Display options below; not for lists of cited works
translator-mask2	translator-last2
others
name-list-style	last2	Set to amp or ampersand to separate the last author with " & "; set to and to separate with " and "
edition
publication-place	publisher
publisher
publication-date
minutes
time-caption	time
time
page		choose one: page, pages, or at
pages		choose one: page, pages, or at. Use when content on multiple pages supports the article text.
at		choose one: page, pages, or at
no-pp	page or pages	set to "yes" to suppress the "p." or "pp." before page numbers
arxiv
asin
asin-tld	asin
bibcode
biorxiv
biorxiv-access	biorxiv
citeseerx
doi
doi-access	doi
doi-broken-date	doi
eissn
hdl
hdl-access	hdl
isbn
ismn
issn
jfm
jstor
jstor-access	jstor
lccn
medrxiv
mr
oclc
ol
ol-access	ol
osti
osti-access	osti
pmc
pmc-embargo-date	pmc
pmid
rfc
sbn
ssrn
s2cid
s2cid-access	s2cid
zbl
id
url-status	archive-url
archive-url	archive-date, url
archive-format	archive-url
archive-date	archive-url
access-date	url
via
quote-page		choose one: quote-page, quote-pages
quote-pages		choose one: quote-page, quote-pages. Use when quote contains contents from multiple pages.
quote
script-quote
trans-quote
mode		cs1 or cs2
ref
postscript
If a field name is listed in the Prerequisites column, it is a prerequisite for the field to the left.

Examples

• {{cite encyclopedia |last=Golden |first=Peter B. |author-link=Peter Benjamin Golden |editor1-last=Golden |editor1-first=Peter B. |editor1-link=Peter Benjamin Golden |editor2-last=Ben-Shammai |editor2-first=Haggai |editor3-last=Róna-Tas |editor3-first=András |editor3-link=András Róna-Tas |encyclopedia=The World of the Khazars: New Perspectives |title=Khazar Studies: Achievements and Perspectives |url={{google books |plainurl=y |id=3ZzXjdyK-CEC|page=7}} |date=2007a |publisher=BRILL |series=Handbook of Oriental Studies |volume=17 |isbn=978-9-004-16042-2 |pages=7–57}}

  Golden, Peter B. (2007a). "Khazar Studies: Achievements and Perspectives". In Golden, Peter B.; Ben-Shammai, Haggai; Róna-Tas, András (eds.). The World of the Khazars: New Perspectives. Handbook of Oriental Studies. Vol. 17. BRILL. pp. 7–57. ISBN 978-9-004-16042-2.

• {{cite encyclopedia |archive-url=https://web.archive.org/web/20031115231753/http://encarta.msn.com/encyclopedia_761565515/Idaho.html |title=Idaho |encyclopedia=MSN Encarta |url=http://encarta.msn.com/encyclopedia_761565515/Idaho.html |archive-date=15 November 2003}}

  "Idaho". MSN Encarta. Archived from the original on 15 November 2003.

• {{cite encyclopedia |last=Seberg |first=Ole |editor1-last=Heywood |editor1-first=Vernon H. |editor2-last=Brummitt |editor2-first=Richard K. |editor3-last=Culham |editor3-first=Alastair |title=Alliaceae |encyclopedia=Flowering Plant Families of the World |url={{google books |plainurl=y |id=Jy1FAQAAIAAJ|page=340}}|date=2007 |publisher=Firefly Books |location=Richmond Hill, Ontario |isbn=978-1-55407-206-4 |pages=340–341}}

  Seberg, Ole (2007). "Alliaceae". In Heywood, Vernon H.; Brummitt, Richard K.; Culham, Alastair (eds.). Flowering Plant Families of the World. Richmond Hill: Firefly Books.

• {{cite encyclopedia |last=Gerish |first=Deborah |editor-last=Murray |editor-first=Alan V. |title=Aimery of Lusignan |encyclopedia=The Crusades: An Encyclopedia |url=https://books.google.com/books?id=6cSXSgAACAAJ |date=2006 |publisher=ABC-CLIO |volume=1 |location=Santa Barbara |oclc=70122512 |pages=24}}

  Gerish, Deborah (2006). "Aimery of Lusignan". In Murray, Alan V. (ed.). The Crusades: An Encyclopedia. Vol. 1. Santa Barbara: ABC-CLIO. p. 24. OCLC 70122512.

• {{cite encyclopedia |encyclopedia=Biographical Memoirs |volume=82 |date=2003 |given=Arnel R. |surname=Hallauer |entry=John David Axtell |publisher=[[National Academies Press]] |publication-place=Washington, D.C. |language=en |url=https://www.nap.edu/catalog/10683/biographical-memoirs-volume-82 |entry-url=https://www.nap.edu/read/10683/chapter/2}}

  Hallauer, Arnel R. (2003). "John David Axtell". Biographical Memoirs. Vol. 82. Washington, D.C.: National Academies Press.

Above is an example of using |entry-url= to link to the cited entry in the encyclopedia while also using |url= to link to the encyclopedia as a whole.

• {{cite encyclopedia |last=Morère |encyclopedia=Dictionary of Scientific Biography |isbn=0-684-10114-9 |first=J. E. |publisher=Charles Scribner's Sons |title=Aguilon, François d' |volume=1 |location=New York |pages=81 |date=1970}}

  Morère, J. E. (1970). "Aguilon, François d'". Dictionary of Scientific Biography. Vol. 1. New York: Charles Scribner's Sons. p. 81. ISBN 0-684-10114-9.

• {{cite encyclopedia |last=Smith |encyclopedia=A concise encyclopedia of the Bahá'í Faith |isbn=1-85168-184-1 |first=Peter |publisher=Oneworld Publications |title=satan |location=Oxford |pages=304 |date=2000}}

  Smith, Peter (2000). "satan". A concise encyclopedia of the Bahá'í Faith. Oxford: Oneworld Publications. p. 304. ISBN 1-85168-184-1.

• {{cite encyclopedia |last=Wallace |first=William A. |editor-last=Gillispie |editor-first=Charles |title=Albertus Magnus, Saint |encyclopedia=Dictionary of Scientific Biography |url=http://www.u.arizona.edu/~aversa/scholastic/Dictionary%20of%20Scientific%20Biography/Albertus%20Magnus%20(Wallace).pdf |date=1970 |publisher=Scribner & American Council of Learned Societies |volume=1 |location=New York |isbn=978-0-684-10114-9 |pages=99-103}}

  Wallace, William A. (1970). "Albertus Magnus, Saint" (PDF). In Gillispie, Charles (ed.). Dictionary of Scientific Biography. Vol. 1. New York: Scribner & American Council of Learned Societies. pp. 99–103. ISBN 978-0-684-10114-9.

• {{cite encyclopedia |last=Morse |encyclopedia=Law Library – American Law and Legal Information |first=Stephen J. |archive-date=1 December 2023 |title=Psychopathy – What Is Psychopathy? |volume=Crime and Justice Vol 3 |archive-url=https://web.archive.org/web/20231201165125/https://law.jrank.org/pages/1884/Psychopathy-What-psychopathy.html |url=http://law.jrank.org/pages/1884/Psychopathy-What-psychopathy.html8}}

  Morse, Stephen J. "Psychopathy – What Is Psychopathy?". Law Library – American Law and Legal Information. Vol. Crime and Justice Vol 3. Archived from the original on 1 December 2023.

• {{cite encyclopedia |title=Wordsmith's dictionary of uncommon words with anonymous definitions |editor-last=Pickett|editor-first=James| date=2021 |ref={{sfnref|''Wordsmith''|2021}}}}

  Pickett, James, ed. (2021). Wordsmith's dictionary of uncommon words with anonymous definitions.

This text uses uncommon-term_1 and uncommon-term-2 that require references in a dictionary and we don't want to cite the dictionary twice.

References

Parameters

Syntax

Nested parameters rely on their parent parameters:

• parent
• OR: parent2—may be used instead of parent
  • child—may be used with parent (and is ignored if parent is not used)
  • OR: child2—may be used instead of child (and is ignored if parent2 is not used)

Where aliases are listed, only one of the parameters may be defined; if multiple aliased parameters are defined, then only one will show.

By default, sets of fields are terminated with a period (.).

COinS

This template embeds COinS metadata in the HTML output, allowing reference management software to retrieve bibliographic metadata. See Wikipedia:COinS. As a general rule, only one data item per parameter. Do not include explanatory or alternate text:

• use |date=27 September 2007 not |date=27 September 2007 (print version 25 September)

Use of templates within the citation template is discouraged because many of these templates will add extraneous HTML or CSS that will be included raw in the metadata. Also, HTML entities, for example  , –, or  , should not be used in parameters that contribute to the metadata.

COinS metadata is created for these parameters

Note: This table of metadata is displayed in the documentation of all Citation Style 1 templates. Not all of these parameters are supported by every CS1 template. Some of these parameters are mutually exclusive, some are aliases of another parameter, and some require other parameters to be present. A full list of this template's supported parameters, their aliases, and their dependencies is shown in the Usage section near the top of this documentation page.

• |periodical=, |journal=, |newspaper=, |magazine=, |work=, |website=, |encyclopedia=, |encyclopaedia=, |dictionary=
• |chapter=, |script-chapter=, |contribution=, |script-contribution=, |entry=, |script-entry=, |article=, |script-article=, |section=, |script-section=
• |title=, |script-title=, |book-title=
• |publication-place=, |place=, |location=
• |date=, |year=, |publication-date=
• |series=, |version=
• |volume=, |issue=, |number=
• |page=, |pages=, |at=, |quote-page=, |quote-pages=
• |edition=
• |publisher=, |institution=
• |url=, |chapter-url=, |contribution-url=, |section-url=
• |author-last=, |author-last#=, |author#-last=, |author-surname=, |author-surname#=, |author#-surname=, |last=, |last#=, |surname=, |surname#=, |author=, |author#=, |subject=, |subject#=, |host=, |host#=
• |author-first=, |author-first#=, |author#-first=, |author-given=, |author-given#=, |author#-given=, |first=, |first#=, |given=, |given#=
• |degree=
• |arxiv=, |bibcode=, |biorxiv=, |citeseerx=, |doi=, |eissn=, |eprint=, |hdl=, |isbn=, |issn=, |jfm=, |jstor=, |lccn=, |message-id=, |mr=, |oclc=, |osti=, |pmc=, |pmid=, |rfc=, |ssrn=, |s2cid=, |zbl=

What's new

What's new or changed recently

Parameter	Description	Date
N/A

Deprecated

Deprecated CS1/CS2 parameters

Deprecated parameter	Replace with	Date
none deprecated at present

Recently removed CS1/CS2 parameters

Removed parameter	Replace with	Date	Note
|authors=	|lastn= / |firstn=, |authorn=, |vauthors=	August 2024

Description

Authors

• last: Surname of a single author. Do not wikilink—use author-link instead. For corporate authors or authors for whom only one name is listed by the source, use last or one of its aliases (e.g. |author=Bono). Aliases: surname, author, last1, surname1, author1.
  • author: this parameter is used to hold the name of an organizational author (e.g. a committee) or the complete name (first and last) of a single person; for the latter, prefer the use of |first= and |last=. This parameter should never hold the names of more than one author. Supports accept-this-as-written markup. Do not use italics in this field, as doing so produces corrupt metadata.
  • first: Given or first names of author; for example: Firstname Middlename or Firstname M. or Firstname M. Sr. Do not wikilink—use author-link instead. Aliases: given, first1, given1. Requires last; first name will not display if last is empty. Use generational and regnal suffixes only in accordance with MOS:JRSR and use honorifics (including Dr., Sir, and similar) only in accordance with MOS:HON.
  • OR: for multiple authors, use last1, first1 through lastn, firstn, where n is any consecutive number for an unlimited number of authors (each firstn requires a corresponding lastn, but not the other way around). See the display parameters to change how many authors are displayed. Aliases: surname1, given1 through surnamen, givenn, or author1 through authorn. For an individual author plus an institutional author, you can use |first1=...|last1=...|author2=....
  • author-link: Title of existing Wikipedia article about the author—not the author's website; do not wikilink. Aliases: author-link1, author1-link, authorlink.
  • OR: for multiple authors, use author-link1 through author-linkn. Aliases: author1-link through authorn-link.
  • name-list-style: accepts a limited list of keywords as value; when set to amp, ampersand, or &, inserts an ampersand between the last two names in a name list; when set to and, inserts the conjunction 'and' between the last two names of a name list; when set to vancdisplays name lists in Vancouver style when the lists use the last/first forms of name parameters.
• vauthors: comma-separated list of author names in Vancouver style; enclose corporate or institutional author names in doubled parentheses. End with etal if appropriate:

  |vauthors=Smythe JB, ((Megabux Corp.)), etal

  • author-link and author-mask may be used for the individual names in |vauthors= as described above
• authors: deprecated Free-form list of author names; use of this parameter is discouraged because it does not contribute to a citation's metadata; not an alias of last.
• translator-last: Surname of translator. Do not wikilink—use translator-link instead. Aliases: translator-surname, translator1, translator1-last, translator-last1. Supports accept-this-as-written markup.
  • translator-first: Given or first names of translator. Do not wikilink—use translator-link instead. Aliases: translator-given, translator1-first, translator-first1.
  • OR: for multiple translators, use translator-last1, translator-first1 through translator-lastn, translator-firstn, where n is any consecutive number for an unlimited number of translators (each translator-firstn requires a corresponding translator-lastn, but not the other way around). Aliases: translator1-last, translator1-first through translatorn-last, translatorn-first, or translator1 through translatorn.
  • translator-link: Title of existing Wikipedia article about the translator—not the translator's website; do not wikilink. Aliases: translator-link1, translator1-link.
  • OR: for multiple translators, use translator-link1 through translator-linkn. Aliases: translator1-link through translatorn-link.
• collaboration: Name of a group of authors or collaborators; requires author, last, or vauthors listing one or more primary authors; follows author name-list; appends "et al." to author name-list.
• others: To record other contributors to the work, including illustrators. For the parameter value, write Illustrated by John Smith.

• Note: When using shortened footnotes or parenthetical referencing styles with templates, do not use multiple names in one field, or else the anchor will not match the inline link.

Date

"Wikipedia:Undated" redirects here. For undated signatures, see Template:Undated.

• date: Date of referenced source. Can be full date (day, month, and year) or partial date (month and year, season and year, or year). Use same format as other publication dates in the citations. Do not wikilink. Displays after the authors and is enclosed in parentheses. If there is no author, then displays after the website and publisher. For acceptable date formats, see Help:Citation Style 1 § Dates.

Shortened footnotes target full citations using the year specified in this parameter. A lowercase letter may be suffixed to the year to disambiguate {{sfn}} links to multiple works by the same author in the same year,^[more] unless the date is formatted as YYYY-MM-DD. In the latter case, year or ref is required to disambiguate the link targets.

For approximate year, precede with "c. ", like this: |date=c. 1900.

For no date, or "undated", use |date=n.d.

The date of a Web page, PDF, etc. with no visible date can sometimes be established by searching the page source or document code for a created or updated date; a comment for editors such as date=2021-12-25<!--date from page source-->|orig-date=Original date 2011-01-01 can be added.

Automatic date formatting: Citation Style 1 and 2 templates, including this template, automatically render dates in all date parameters (such as |date=, |publication-date=, |access-date=, |archive-date=, etc.) except for |orig-date= in the style specified by the article's {{use dmy dates}} or {{use mdy dates}} template. See those templates' documentation for details.

• year: Year of publication. The more flexible |date= parameter also handles a year by itself. Do not use in combination with the |date= parameter, unless both of the following conditions are met:
  1. Shortened footnotes target multiple citations with same last name and year of publication. (This situation necessitates a CITEREF disambiguator, usually a lowercase letter suffixed to the year.)
  2. The |date= format is YYYY-MM-DD. (This format prevents the addition of a disambiguating letter to the year.)
• orig-date: Original publication date or year; displays in square brackets after the date (or year). For clarity, please supply specifics. For example: |orig-date=First published 1859 or |orig-date=Composed 1904. As |orig-date= does not support automatic date formatting, use the same date format as defined by |df= (or, if it exists in the article, by |cs1-dates= of a {{use dmy dates}} or {{use mdy dates}} template), or as used in the |date= parameter. Alias: orig-year
• df: date format; sets rendered dates to the specified format; does not support date ranges or seasonal dates; overrides the automatic date formatting described above. Accepts one value which may be one of these:

  dmy – set publication dates to day month year format; access- and archive-dates are not modified;

  mdy – as above for month day, year format

  ymd – as above for year initial numeric format YYYY-MM-DD

  dmy-all – set publication, access-, and archive-dates to day month year format;

  mdy-all – as above for month day, year format

  ymd-all – as above for year initial numeric format YYYY-MM-DD

Editors

• editor-last: surname of editor. Do not wikilink—use editor-link instead. Where the surname is usually written first—as in Chinese—or for corporate authors, simply use editor-last to include the same format as the source. Aliases: editor-last1, editor1-last, editor-surname, editor-surname1, editor1-surname, editor, editor1.
  • editor: This parameter is used to hold the complete name of a single editor (first and last), or the name of an editorial committee. This parameter should never hold the names of more than one editor. Supports accept-this-as-written markup.
  • editor-first: given or first names of editor, including title(s); example: Firstname Middlename or Firstname M. or Dr. Firstname M., Sr. Do not wikilink—use editor-link instead. Aliases: editor-first1, editor1-first, editor-given, editor-given1, editor1-given.
  • OR: for multiple editors, use editor-last1, editor-first1 through editor-lastn, editor-firstn (Aliases: editorn-last, editor-surnamen or editorn-surname; editorn-first, editor-givenn or editorn-given; editorn). For an individual editor plus an institutional editor, you can use |editor-first1=...|editor-last1=... |editor2=....
  • editor-link: title of existing Wikipedia article about the editor—not the editor's website; do not wikilink. Aliases: editor-link1.
  • OR: for multiple editors, use editor-link1 through editor-linkn (alias editorn-link).
  • name-list-style: accepts a limited list of keywords as value; when set to amp, ampersand, or &, inserts an ampersand between the last two names in a name list; when set to and, inserts the conjunction 'and' between the last two names of a name list; when set to vancdisplays name lists in Vancouver style when the lists use the last/first forms of name parameters.
• veditors: comma separated list of editor names in Vancouver style; enclose corporate or institutional names in doubled parentheses. End with etal if appropriate:

  |veditors=Smythe JB, ((Megabux Corp.)), etal

  • editor-linkn and editor-maskn may be used for the individual names in |veditors=, as described above
• Display:

  Use display-editors to control the length of the displayed editor name list and to specify when "et al." is included.

  If authors: Authors are first, followed by the included work, then "In" and the editors, then the main work.

  If no authors: Editors appear before the included work; a single editor is followed by "ed."; multiple editors are followed by "eds."

Title

(See also Help:Citation Style 1 § Titles and chapters.)

• title: Title of source. Can be wikilinked to an existing Wikipedia article or url may be used to add an external link, but not both. Displays in italics. If script-title is defined, use title to hold a Romanization (if available) of the title in script-title.
  • script-title: Original title for languages that do not use a Latin-based script (Arabic, Chinese, Cyrillic, Greek, Hebrew, Japanese, Korean, etc.); not italicized, follows italicized Romanization defined in title (if present). Must be prefixed with one of the supported language codes to help browsers properly display the script:

    ... |title=Tōkyō tawā |script-title=ja:東京タワー |trans-title=Tokyo Tower ...

  • trans-title: English translation of the title if the source cited is in a foreign language. Displays in square brackets after title. Use of the language parameter is recommended.

Titles containing certain characters will not display and link correctly unless those characters are encoded.

newline	[	]	|
space	[	]	{{!}} (preferred)
	{{bracket|text}}		| or {{pipe}} – see also Help:Table § Rendering the pipe

• title-link: Title of existing Wikipedia article about the source named in title – do not use a web address; do not wikilink.

• type: Provides additional information about the media type of the source. May alternatively be used to identify the type of manuscript linked to in the title, if this is not the final version of a manuscript (e.g. if a preprint of a manuscript is freely available, but the version of record is behind a paywall). Format in sentence case. Displays in parentheses following the title. The reserved keyword none can be used to disable the display of a type. Examples: Thesis, Booklet, Accepted manuscript, CD liner, Press release. Alias: medium.

• chapter: The chapter heading of the source. May be wikilinked or may use chapter-url, but not both. Displays in quotes. If script-chapter is defined, use chapter to hold a Romanization (if available) of the title in script-chapter
  • script-chapter: Chapter heading for languages that do not use a Latin-based script (Arabic, Chinese, Cyrillic, Greek, Hebrew, Japanese, Korean, etc); follows Romanization defined in chapter (if present). Must be prefixed with one of the supported language codes to help browsers properly display the script:

    ... |chapter=Tōkyō tawā |script-chapter=ja:東京タワー |trans-chapter=Tokyo Tower ...

  • trans-chapter: English translation of the chapter heading, if the source cited is in a foreign language. Displays in square brackets after the chapter field; if chapter-url is defined, then trans-chapter is included in the link. Use of the language parameter is recommended.
• contribution: A separately-authored part of author's book. May be wikilinked or may use contribution-url, but not both. Values of Afterword, Foreword, Introduction, or Preface will display unquoted; any other value will display in quotation marks. The author of the contribution is given in contributor.

• language: The language (or a comma-separated list of the languages) in which the source is written, as either the ISO 639 language code (preferred) or the full language name. Examples: |language=ru; |lang=fr, pt-br; |lang=Russian; |language=French, Portuguese. See the list of supported codes and names. Do not use templates or wikilinks. Displays in parentheses with "in" before the language name or names. When the only source language is English, no language is displayed in the citation. The use of languages recognized by the citation module adds the page to the appropriate subcategory of Category:CS1 foreign language sources. Because cs1|2 templates are often copied from en.wiki to other wikis, the use of language codes is preferred so that language names render in the correct language and form, e.g. espagnol at a French-language wiki instead of the English word "Spanish". Aliases: lang

URL

• url: URL of an online location where the text of the publication named by title can be found. Cannot be used if title is wikilinked. If applicable, the link may point to the specific page(s) referenced. Remove tracking parameters from URLs, e.g. #ixzz2rBr3aO94 or ?utm_source=google&utm_medium=...&utm_term=...&utm_campaign=.... For linking to pages in PDF files or in Google Books, see WP:PAGELINKS. Do not link to any commercial booksellers, such as Amazon; use |isbn= or |oclc= to provide neutral search links for books. Invalid URLs, including those containing spaces, will result in an error message.
  • access-date: Full date when the content pointed to by url was last verified to support the text in the article; do not wikilink; requires url; use the same format as other access and archive dates in the citations. Not required for linked documents that do not change. For example, access-date is required for online sources, such as personal websites, that do not have a publication date; see WP:CITEWEB. Access dates are not required for links to published research papers or published books. Note that access-date is the date that the URL was found to be working and to support the text being cited. See "Automatic date formatting" above for details about interaction with {{use dmy dates}} and {{use mdy dates}}. Can be hidden or styled by registered editors. Alias: accessdate.
  • archive-url: The URL of an archived snapshot of a web page. Typically used to refer to services such as Internet Archive (see Wikipedia:Using the Wayback Machine) and archive.today (see Help:Using archive.today); requires archive-date and url. By default (overridden by |url-status=live) the archived link is displayed first, with the original link at the end. Alias: archiveurl.
    • archive-date: Archive-service snapshot-date; preceded in display by default text "archived from the original on". Use the same format as other access and archive dates in the citations. This does not necessarily have to be the same format that was used for citing publication dates. Do not wikilink; templated dates are discouraged. See "Automatic date formatting" above for details about interaction with {{use dmy dates}} and {{use mdy dates}}. Alias: archivedate.
    • url-status: A control parameter to select one of |url= or |archive-url= to link |title=; requires url and archive-url. Use {{dead link}} to mark dead |url= when there is no |archive-url=.

      Accepts multiple keywords:

      • dead – (default condition when |url-status= omitted or empty) selects |archive-url=
      • live – selects |url=; used when |url= is preemptively archived with |archive-url=
      • deviated – selects |archive-url=; used when |url= is still 'live' but no-longer supports the text in a Wikipedia article
      • unfit – selects |archive-url=; used when |url= links to vice (gambling, pornography), advertising, or other unsuitable page; links to |url= are suppressed in the rendering. If an entire domain is unsuitable, consider instead usurpation or blacklist. Bot help is available at WP:URLREQ
      • usurped – selects |archive-url=; used when the domain in |url= no longer serves its original intent, particularly when the domain has been (mis)appropriated by other entities, such as vice, reseller and advertising sites; links to |url= are suppressed in the rendering. Bot help is available at WP:URLREQ
      • bot: unknown – Editors may encounter this value which is left behind by a bot that has visited the reference and wasn't able to determine the status of the url. The page will be automatically placed in Category:CS1 maint: bot: original URL status unknown when this value is present, and per the instructions in that category, editors manually evaluate the state of the URL and change the parameter value appropriately.

    • archive-format: File format of the work referred to by archive-url; for example: DOC or XLS; displayed in parentheses after the archive link. HTML is implied and should not be specified. PDF is auto-detected and should not be specified. Does not change the external link icon (except for PDF). Note: External link icons do not include alt text; thus, they do not add file format information for the visually impaired. (This is not a concern with PDF, because the auto-detection will add "(PDF)" as descriptive text.) See Using |format=
  • url-access: See Access indicators for url-holding parameters
• format: File format of the work referred to by url; for example: DOC or XLS; displayed in parentheses after title. (For media format, use type.) HTML is implied and should not be specified. PDF is auto-detected and should not be specified. Does not change the external link icon (except for PDF). Note: External link icons do not include alt text; thus, they do not add file format information for the visually impaired. (This is not a concern with PDF, because the auto-detection will add "(PDF)" as descriptive text.) See Using |format=

URLs must begin with a supported URI scheme. http:// and https:// will be supported by all browsers; however, ftp://, gopher://, irc://, ircs://, mailto: and news: may require a plug-in or an external application and should normally be avoided. IPv6 host-names are currently not supported.

If URLs in citation template parameters contain certain characters, then they will not display and link correctly. Those characters need to be percent-encoded. For example, a space must be replaced by %20. To encode the URL, replace the following characters with:

Character	space	"	'	<	>	[	]	{	|	}
Encoding	%20	%22	%27	%3C	%3E	%5B	%5D	%7B	%7C	%7D

Single apostrophes do not need to be encoded; however, unencoded multiples will be parsed as italic or bold markup. Single curly closing braces also do not need to be encoded; however, an unencoded pair will be parsed as the double closing braces for the template transclusion.

Chapter URL

• chapter-url: URL of an online location where the text of the publication named by chapter or contribution can be found. Cannot be used if those parameters are wikilinked. Should be at the same site as url, if any. If chapter-url is used, url should only be used if the beginning of the work and the cited chapter are on separate webpages at the site. Aliases: contribution-url, section-url.
• chapter-format: Format of the work referred to by chapter-url; for example: PDF, DOC, or XLS; displayed in parentheses after chapter. HTML is implied and should not be specified. Does not change the external link icon. Note: External link icons do not include alt text; thus, they do not add format information for the visually impaired.

Encyclopedia

• encyclopedia: Name of the work containing the source; may be wikilinked if relevant. Displays in italics. If the name of the periodical changed over time use the name at the time of the source's publication. If script-encyclopedia is defined, use encyclopedia to hold a Romanization (if available) of the title in script-encyclopedia. Alias: dictionary. Use Latin script. For languages written in non-Latin based scripts (Arabic, Chinese, Cyrillic, Greek, Hebrew, Indic, Japanese, Korean, etc.) use a standard Romanization in this field.
  • script-encyclopedia: Work title in its original, non-Latin script; not italicized, follows italicized Romanization defined in encyclopedia (if present). Must be prefixed with one of the supported language codes to help browsers properly display the script. Leave empty for Latin-based scripts (Czech, French, Turkish, Vietnamese, etc.). Alias: script-dictionary.
  • trans-encyclopedia: English translation of the work title if the source cited is in a foreign language. Displays in square brackets after encyclopedia or script-encyclopedia.

    ... |encyclopedia=Zhōngguó piàofáng |script-encyclopedia=zh:中国票房 |trans-encyclopedia=China Box Office ...

  • department: Title of a regular department, column, or section within the periodical or journal. Examples include "Communication", "Editorial", "Letter to the Editor", and "Review". Displays after title and is in plain text.

Edition, series, volume

• edition: When the publication has more than one edition; for example: "2nd", "Revised", and so forth. Appends the string " ed." after the field, so |edition=2nd produces "2nd ed." Does not display if a periodical field is defined.

• series or version: When the source is part of a series, such as a book series or a journal, where the issue numbering has restarted.

• volume: For one publication published in several volumes. Displays after the title and series fields; volume numbers should be entered just as a numeral (e.g. 37). Volume values that are wholly digits, wholly uppercase Roman numerals, or fewer than five characters will appear in bold. Any alphanumeric value of five or more characters will not appear in bold. In rare cases, publications carry both an ongoing volume and a year-related value; if so, provide them both, for example |volume=IV / #10.

Publisher

• publisher: Name of publisher; may be wikilinked if relevant. The publisher is the company, organization or other legal entity that publishes the work being cited. For self-published works (i.e., where the publisher is the same as the author or creator) state |publisher=self-published. Do not use the publisher parameter for the name of a work (e.g. a website, book, encyclopedia, newspaper, magazine, journal, etc.). If the name of the publisher changed over time, use the name as stated in the publication or used at the time of the source's publication. Corporate designations such as "Ltd", "Inc.", or "GmbH" are not usually included. Not normally used for periodicals. Omit where the publisher's name is substantially the same as the name of the work (for example, The New York Times Co. publishes The New York Times newspaper, so there is no reason to name the publisher). Displays after title.
• place: For news stories with a dateline, the location where the story was written. If the name of the location changed over time, use the name as stated in the publication or used at the time of the source's publication. In earlier versions of the template this was the publication place, and for compatibility, will be treated as the publication place if the publication-place parameter is absent; see that parameter for further information. Alias: location
• publication-place: Geographical place of publication; generally not wikilinked; omit when the name of the work includes the publication place, for example, The Boston Globe, The Times of India. Displays after the title. If the name of the publication place changed over time, use the name as stated in the publication or used at the time of the source's publication. If only one of publication-place, place, or location is defined, it will be treated as the publication place and will show after the title; if publication-place and place or location are defined, then place or location is shown before the title prefixed with "written at" and publication-place is shown after the title.
• publication-date: Date of publication when different from the date the work was written. If date (or year) is also defined and is different, then publication-date displays preceded by "published" and enclosed in parentheses, following publisher. If date (or year) is not defined, publication-date is displayed as date. Use the same format as other dates in the article; do not wikilink.
• via: Name of the content deliverer (if different from publisher). via is not a replacement for publisher, but provides additional detail. It may be used when the content deliverer (e.g. NewsBank) presents the source in a format different from the original, when the URL provided does not make clear the identity of the deliverer, where no URL or DOI is available (EBSCO), or if the deliverer requests attribution. See the access level parameters to display access restrictions.

In-source locations

• page: The number of a single page in the source that supports the content. Use either |page= or |pages=, but not both. Displays preceded by p. unless |no-pp=yes. If hyphenated, use {{hyphen}} to indicate this is intentional (e.g. |page=3{{hyphen}}12), otherwise several editors and semi-automated tools will assume this was a misuse of the parameter to indicate a page range and will convert |page=3-12 to |pages=3{{ndash}}12. Alias: p.
• OR: pages: A range of pages in the source that supports the content. Use either |page= or |pages=, but not both. Separate using an en dash (–); separate non-sequential pages with a comma (,); do not use to indicate the total number of pages in the source. Displays preceded by pp. unless |no-pp=yes.
  Hyphens are automatically converted to en dashes; if hyphens are appropriate because individual page numbers contain hyphens, for example: pp. 3-1–3-15, use double parentheses to tell the template to display the value of |pages= without processing it, and use {{hyphen}} to indicate to editors that a hyphen is really intended: |pages=((3{{hyphen}}1{{ndash}}3{{hyphen}}15)). Alternatively, use |at=, like this: |at=pp. 3-1–3-15. Alias: pp.
  • no-pp: Set to yes, y, or true to suppress the p. or pp. notations where this is inappropriate; for example, where |page=Front cover or |pages=passim.
• OR: at: For sources where a page number is inappropriate or insufficient. Overridden by |page= or |pages=. Use only one of |page=, |pages=, or |at=.
  Examples: page (p.) or pages (pp.); section (sec.), column (col.), paragraph (para.); track; hours, minutes and seconds; act, scene, canto, book, part, folio, stanza, back cover, liner notes, indicia, colophon, dust jacket, verse.
• For |quote-page= and |quote-pages= used in conjunction with |quote=, see here.

Identifiers

Not to be confused with § Anchor.

• id: A unique identifier, used where none of the specialized identifiers are applicable; wikilink or use an external link template as applicable. For example, |id=NCJ 122967 will append "NCJ 122967" at the end of the citation. You can use templates such as |id={{NCJ|122967}} to append NCJ 122967 instead.

The following identifiers create links and are designed to accept a single value. Using multiple values or other text will break the link and/or invalidate the identifier. In general, the parameters should include only the variable part of the identifier, e.g. |rfc=822 or |pmc=345678.

• arxiv: arXiv identifier; for example: |arxiv=hep-th/9205027 (before April 2007) or |arxiv=0706.0001 (April 2007 – December 2014) or |arxiv=1501.00001 (since January 2015). Do not include extraneous file extensions like ".pdf" or ".html". Aliases: eprint.
• asin: Amazon Standard Identification Number; if first character of asin value is a digit, use isbn. Because this link favours one specific distributor, include it only if standard identifiers are not available. Example |asin=B00005N5PF. Aliases: ASIN.
  • asin-tld: ASIN top-level domain for Amazon sites other than the US; valid values: ae, au, br, ca, cn, de, es, fr, in, it, jp, mx, nl, pl, sa, se, sg, tr, uk. Aliases: none.
• bibcode: bibcode; used by a number of astronomical data systems; for example: 1974AJ.....79..819H. Aliases: none.
• biorxiv: bioRxiv id, as in the entire DOI (e.g. 10.1101/078733 for http://biorxiv.org/content/early/2016/10/01/078733 or https://doi.org/10.1101/078733; 10.1101/2020.07.24.220400 for https://doi.org/10.1101/2020.07.24.220400). Aliases: none.
• citeseerx: CiteSeerX id, a string of digits and dots found in a CiteSeerX URL (e.g. 10.1.1.176.341 for https://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.176.341). Aliases: none.
• doi: Digital object identifier; for example: 10.1038/news070508-7. It is checked to ensure it begins with (10.). Aliases: DOI.
  • Supports accept-this-as-written markup to indicate valid DOIs using a non-standard format, see below.
  • doi-broken-date: Date a valid DOI was found to be non-working/inactive at https://doi.org. Use the same format as other dates in the article. Aliases: none.
• eissn: International Standard Serial Number for the electronic media of a serial publication; eight characters may be split into two groups of four using a hyphen, but not an en dash or a space; example |eissn=1557-2986. Aliases: EISSN.
  • Supports accept-this-as-written markup to indicate valid eISSNs using a non-standard format, see below.
• hdl: Handle System identifier for digital objects and other resources on the Internet; example |hdl=20.1000/100. Aliases: HDL.
• isbn: International Standard Book Number; for example: 978-0-8126-9593-9. (See Wikipedia:ISBN and ISBN § Overview.) Hyphens in the ISBN are optional, but preferred. Use the ISBN actually printed on or in the book. Use the 13-digit ISBN – beginning with 978 or 979 – when it is available. If only a 10-digit ISBN is printed on or in the book, use it. ISBNs can be found on the page with the publisher's information – usually the back of the title page – or beneath the barcode as a number beginning with 978 or 979 (barcodes beginning with any other numbers are not ISBNs). For sources with the older 9-digit SBN system, use sbn. Do not convert a 10-digit ISBN to 13-digit by just adding the 978 prefix; the last digit is a calculated check digit and just making changes to the numbers will make the ISBN invalid. This parameter should hold only the ISBN without any additional characters. It is checked for length, invalid characters – anything other than numbers, spaces, and hyphens, with "X" permitted as the last character in a 10-digit ISBN – and the proper check digit. Aliases: ISBN.
  • Use the {{Format ISBN}} template within the parameter – in the form |isbn={{Format ISBN|9780812695939}} – if you are unsure of how any particular ISBN should be hyphenated, as the pattern varies by country and publisher.
  • Supports accept-this-as-written markup to indicate valid ISBNs using a non-standard format, see below.
• ismn: International Standard Music Number; for example: 979-0-9016791-7-7. Hyphens or spaces in the ISMN are optional. Use the ISMN actually printed on or in the work. This parameter should hold only the ISMN without any additional characters. It is checked for length, invalid characters – anything other than numbers, spaces, and hyphens – and the proper check digit. Aliases: ISMN.
• issn: International Standard Serial Number; eight characters may be split into two groups of four using a hyphen, but not an en dash or a space; example |issn=2049-3630. Aliases: ISSN.
  • Supports accept-this-as-written markup to indicate valid ISSNs using a non-standard format, see below.
• jfm: Jahrbuch über die Fortschritte der Mathematik; do not include "JFM" in the value; example |jfm=53.0144.01. Aliases: JFM.
• jstor: JSTOR reference number; for example: |jstor=3793107. Aliases: JSTOR.
• lccn: Library of Congress Control Number. When present, alphabetic prefix characters are to be lower case and without a space; example |lccn=79-57364 or |lccn=2004042477 or |lccn=e09001178. Aliases: LCCN.
• mr: Mathematical Reviews; example |mr=630583. Aliases: MR.
• oclc: OCLC Number for looking up publications in the WorldCat union catalog; example |oclc=9355469. Aliases: OCLC.
• ol: Open Library identifier; do not include "OL" in the value; example |ol=7030731M. Aliases: OL.
• osti: Office of Scientific and Technical Information; example |osti=4367507. Aliases: OSTI.
• pmc: PubMed Central; use article number for open repository full-text of a journal article, e.g. |pmc=345678. Do not include "PMC" in the value. See also the pmid parameter, below; these are two different identifiers. Aliases: PMC.
  • pmc-embargo-date: Date that pmc goes live; if this date is in the future, then pmc is not linked until that date. Aliases: none.
• pmid: PubMed; use unique identifier; example |pmid=17322060 See also the pmc parameter, above; these are two different identifiers. Aliases: PMID.
• rfc: Request for Comments; example |rfc=3143. Aliases: RFC.
• sbn: Standard Book Number; example |sbn=356-02201-3. Aliases: SBN.
  • Supports accept-this-as-written markup to indicate valid SBNs using a non-standard format, see below.
• ssrn: Social Science Research Network; example |ssrn=1900856. Aliases: SSRN.
• s2cid: Semantic Scholar corpus ID; example |s2cid=37220927. Aliases: S2CID.
• zbl: Zentralblatt MATH; example |zbl=0472.53010 For zbMATH search results like JFM 35.0387.02 use |jfm=35.0387.02. Aliases: ZBL.

In very rare cases, identifiers are published which do not follow their defined standard format or use non-conforming checksums. These would typically cause an error message to be shown. Do not alter them to match a different checksum. In order to suppress the error message, some identifiers (|doi=, |eissn=, |isbn=, |issn=, and |sbn=) support a special accept-this-as-written markup which can be applied to disable the error-checking (as |<param>=((<value>))). If the problem is down to a mere typographical error in a third-party source, correct the identifier value instead of overriding the error message.

For some identifiers, it is possible to specify the access status using the corresponding |<param>-access= parameter.

For {{cite journal}}, some identifiers (specifying free resources) will automatically be linked to the title when |url= and |title-link= are not used to specify a different link target. This behaviour can be overridden by one out of a number of special keywords for |title-link= to manually select a specific source (|title-link=pmc or |title-link=doi) for auto-linking or to disable the feature (|title-link=none).

It is not necessary to specify a URL to a link identical to a link also produced by an identifier. The |url= parameter (or |title-link=) can then be used for providing a direct deep link to the corresponding document or a convenience link to a resource that would not otherwise be obviously accessible.

Subscription or registration required

Citations of online sources that require registration or a subscription are acceptable in Wikipedia as documented in Verifiability § Access to sources. As a courtesy to readers and other editors, editors should signal restrictions on access to material provided via the external links included in a citation. These levels describe requirements or constraints related to accessing and viewing the cited material; they are not intended to indicate the ability to reuse, or the copyright status, of the material, since that status is not relevant to verifying claims in articles.

Four access levels can be used:

• access indicator for named identifiers:
  • free: the source is free to read for anyone
• access indicators for url-holding parameters:
  • registration: a free registration with the provider is required to access the source, even if a limited preview, abstract or review may still be available without registration
  • limited: free access is subject to limited trial and a subscription is normally required
  • subscription: the source is only accessible via a paid subscription with the provider of the source ("paywall")

As there are often multiple external links with different access levels in the same citation, each value is attributed to a specific external link.

Access indicators for url-holding parameters

See also: WP:CONLINK

Online sources linked by |url=, |article-url=, |chapter-url=, |contribution-url=, |entry-url=, |map-url=, and |section-url= are presumed to be free-to-read. When they are not free-to-read, editors should mark those sources with the matching access-indicator parameter so that an appropriate icon is included in the rendered citation. Because the sources linked by these URL-holding parameters are presumed to be free-to-read, they are not marked as free. If the registration/limited/subscription access to the source goes dead and is no longer available, then remove the access-indicator parameter and add |archive-url= and |archive-date= values if possible.

URL-holding and access-indicator parameters

URL	Access	Allowed keywords
|url=	|url-access=	registration limited subscription
|article-url=	|article-url-access=
|chapter-url=	|chapter-url-access=
|contribution-url=	|contribution-url-access=
|entry-url=	|entry-url-access=
|map-url=	|map-url-access=
|section-url=	|section-url-access=

For example, this cites a web page that requires registration but not subscription:

{{cite web |url=https://example.com/nifty_data.php |url-access=registration |date=2021-04-15 |title=Nifty example data}}

which renders as:

"Nifty example data". 2021-04-15.

Access indicator for named identifiers

Links inserted by named identifiers are presumed to lie behind a paywall or registration barrier – exceptions listed below. When they are free-to-read, editors should mark those sources with the matching access-indicator parameter so that an appropriate icon is included in the rendered citation. When the sources linked by these named-identifier parameters are not presumed to carry a free-to-read full text (for instance because they're just abstracting services), they may not be marked as limited, registration, or subscription.

Named-identifier and access-indicator parameters

Identifier	Access	Allowed keywords
|bibcode=	|bibcode-access=	free
|doi=	|doi-access=
|hdl=	|hdl-access=
|jstor=	|jstor-access=
|ol=	|ol-access=
|osti=	|osti-access=
|ssrn=	|ssrn-access=
|s2cid=	|s2cid-access=

Some named-identifiers are always free-to-read. For those named identifiers there are no access-indicator parameters; the access level is automatically indicated by the template. These named identifiers are:

• |arxiv=
• |biorxiv=
• |citeseerx=
• |medrxiv=
• |pmc=
• |rfc=

For embargoed pmc that will become available in the future, see pmc-embargo-date.

Tracking of free DOIs

• The template is able to recognize known free-to-read DOI registrants, based on a list in Module:Citation/CS1/Configuration. Once a free registrant is identified, the 10.xxxx/... part of the DOI associated with the registrant can be added to the list under local function build_free_doi_registrants_table(). If |doi-access=free is not set, it will place the page in Category:CS1 maint: unflagged free DOI, which is routinely cleared by User:Citation bot.
• The template is also able to recognize known free-to-read journals, assuming they have a clear 10.xxxx/yyyy.... DOI pattern. Once that pattern is identified, it can be added to Module:Citation/CS1/Configuration under local extended_registrants_t = { with the format ['XXXX'] = {'YYYY'},. If there are multiple journals with the same DOI prefix, they can be grouped together with the format ['XXXX'] = {'YYYY', 'ZZZZ', '...'},.
• If you add a free registrant/free journal to the lists in Module:Citation/CS1/Configuration, leave a note at User talk:Citation bot so the bot knows about it.

Quote

• quote: Relevant text quoted from the source. Displays enclosed in quotes. When supplied, the citation terminator (a period by default) is suppressed, so the quote must include terminating punctuation. If script-quote is defined, use quote to hold a Romanization (if available) of the text in script-quote.
  • script-quote: Original quotation for languages that do not use a Latin-based script (Arabic, Chinese, Cyrillic, Greek, Hebrew, Japanese, Korean, etc.); not italicized, follows italicized Romanization defined in quote (if available). Alias: none. Must be prefixed with one of the supported language codes to help browsers properly display the script:

    ... |quote=Tōkyō tawā |script-quote=ja:東京タワー |trans-quote=Tokyo Tower ...

  • trans-quote: English translation of the quotation if the source quoted is in a foreign language. Displays in square brackets. Alias: none.
• quote-page: The number of a single page quoted in |quote=. Use either |quote-page= or |quote-pages=, but not both. Should be a subset of the page(s) specified in |page=, |pages= or |at=. Displays preceded by p. unless |no-pp=yes. If hyphenated, use {{hyphen}} to indicate this is intentional (e.g. |quote-page=3{{hyphen}}12). Alias: none.
• OR: quote-pages: A list or range of pages quoted in |quote=. Use either |quote-page= or |quote-pages=, but not both. Should be a subset of the pages specified in |pages= or |at=. Separate using an en dash (–); separate non-sequential pages with a comma (,). Displays preceded by pp. unless |no-pp=yes is defined. Hyphens are automatically converted to en dashes; if hyphens are appropriate because individual page numbers contain hyphens, for example: pp. 3-1–3-15, use double parentheses to tell the template to display the value of |quote-pages= without processing it, and use {{hyphen}} to indicate to editors that a hyphen is really intended: |quote-pages=((3{{hyphen}}1{{ndash}}3{{hyphen}}15)). Alias: none.

Anchor

Not to be confused with § Identifiers.

• ref: the citation's HTML anchor identifier, when different from its default. When set, |ref=ID generates an anchor with the given ID (the id= attribute in the citation's <cite id="ID"> HTML tag). Setting |ref=ID identifies the template as a target and allows wikilinking to full references, especially useful with short-form citations like shortened notes and parenthetical referencing. The default anchor ID is suitable for use with {{sfn}} and {{harv}} templates. Since April 2020, the parameter / keyword pair |ref=harv has no special meaning; this deprecated setting should not be used and may be removed from existing cs1|2 templates. To inhibit anchor ID creation, set |ref=none. Aliases: none. See Template:Citation/doc § Anchors for Harvard referencing templates.

Display options

• mode: Sets element separator, default terminal punctuation, and certain capitalization according to the value provided. For |mode=cs1, element separator and terminal punctuation is a period (.); where appropriate, initial letters of certain words are capitalized ('Retrieved...'). For |mode=cs2, element separator is a comma (,); terminal punctuation is omitted; where appropriate, initial letters of certain words are not capitalized ('retrieved...'). These styles correspond to Citation Style 1 and Citation Style 2 respectively. To override default terminal punctuation use postscript.
• author-mask:
• contributor-mask:
• editor-mask:
• interviewer-mask:
• subject-mask:
• translator-mask:

  Replaces the name of the (first) author with em dashes or text. Set <name>-mask to a numeric value n to set the dash n em spaces wide; set <name>-mask to a text value to display the text without a trailing author separator; for example, "with". The numeric value 0 is a special case to be used in conjunction with <name>-link—in this case, the value of <name>-link will be used as (linked) text. In either case, you must still include the values for all names for metadata purposes. Primarily intended for use with bibliographies or bibliography styles where multiple works by a single author are listed sequentially such as shortened footnotes. Do not use in a list generated by {{reflist}}, <references /> or similar as there is no control of the order in which references are displayed. Mask parameters can take an enumerator in the name of the parameter (e.g. |authorn-mask=) to apply the mask to a specific name.

• display-authors:
• display-contributors:
• display-editors:
• display-interviewers:
• display-subjects:
• display-translators:

  Controls the number of author (or other kind of contributor) names that are displayed. By default, all authors are displayed. To change the displayed number of names, set the parameter to the desired number. For example, |display-authors=2 will display only the first two authors in a citation (and not affect the display of the other kinds of contributors). |display-authors=0 is a special case suppressing the display of all authors including the et al. |display-authors=etal displays all authors in the list followed by et al. Aliases: none.

• postscript: Controls the closing punctuation for a citation; defaults to a period (.); for no terminating punctuation, specify |postscript=none – leaving |postscript= empty is the same as omitting it, but is ambiguous. Additional text, or templates that render more than a single terminating punctuation character, will generate a maintenance message. |postscript= is ignored if quote is defined.

TemplateData

This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. See a monthly parameter usage report for Template:PK2 in articles based on its TemplateData.

TemplateData for PK2

Error: cs1|2 template name required

This template formats a citation to an article or chapter in an edited collection such as an encyclopedia or dictionary, but more generally to any book or book series containing individual sections or chapters written by various authors, and put together by one or more editors.

Template parameters[Edit template data]

This template has custom formatting.

Parameter		Description	Type	Status
Year of publication	year	Year of the source being referenced; use 'date' instead, if month and day are also known	String	optional
Source title	title entry	The title of the article or entry in the encyclopedia; displays in quotes	String	required
Encyclopedia	encyclopedia encyclopaedia dictionary	Title of the source; may be wikilinked; displays in italics	String	suggested
Publisher	publisher institution	Name of the publisher; displays after title	String	optional
Location of publication	location place	Geographical place of publication; usually not wikilinked; omit when the publication name includes place; alias of 'place'	String	optional
ID	id ID	A unique identifier used where none of the specialized ones are applicable	String	optional
URL	url URL	The URL of the online location where the text of the publication can be found	String	optional
URL access date	access-date	The full date when the original URL was accessed; do not wikilink	String	optional
Last name	last	The surname of the author; don't wikilink, use 'author-link'; can suffix with a numeral to add additional authors	String	suggested
First name	first	Given or first name, middle names, or initials of the author; don't wikilink, use 'author-link'; can suffix with a numeral to add additional authors	String	suggested
Source date	date	Full date of the source; do not wikilink	String	optional
Author link	author-link author-link1 author1-link	Title of existing Wikipedia article about the author; can suffix with a numeral to add additional authors	Page name	optional
Others	others	Used to record other contributions to the work, such as 'Illustrated by John Smith', 'Revised by John Smith' or 'Translated by John Smith'	String	optional
Original date	orig-date orig-year	Original year of publication; provide specifics	String	optional
Editor last name	editor-last editor editor-surname editor-last1 editor-surname1 editor1 editor1-last editor1-surname	The surname of the editor; don't wikilink, use 'editor-link'; can suffix with a numeral to add additional editors	Unknown	optional
Editor first name	editor-first editor-given editor-first1 editor-given1 editor1-first editor1-given	Given or first name, middle names, or initials of the editor; don't wikilink, use 'editor-link'; can suffix with a numeral to add additional editors	Unknown	optional
Editor link	editor-link	Title of existing Wikipedia article about the editor; can suffix with a numeral to add additional editors; alias of 'editor1-link'	Page name	optional
Place of publication	publication-place	Publication place shows after title; if 'place' or 'location' are also given, they are displayed before the title prefixed with 'written at'	String	optional
Publication date	publication-date	Date of publication when different from the date the work was written; do not wikilink	String	optional
Edition	edition	When the publication has more than one edition; for example: '2nd', 'Revised' etc.; suffixed with ' ed.'	String	optional
Series	series version	When the source is part of a series, such as a book series where the issue numbering has restarted; alias of 'version'	String	optional
Volume	volume	For one publication published in several volumes	String	optional
Page	page p	Page in the source that supports the content; displays after 'p.'	String	optional
Pages cited	pages pp	A range of pages in the source that support the content (not an indication of the number of pages in the source); displays after 'pp.'; use either page= or pages=, but not both Example 5–11	String	suggested
No pp	no-pp	Set to 'y' to suppress the 'p.' or 'pp.' display with 'page' or 'pages' when inappropriate (such as 'Front cover')	String	optional
At	at	May be used instead of 'page' or 'pages' where a page number is inappropriate or insufficient	String	optional
Language	language lang	The language in which the source is written, if not English; use the full language name; do not use icons or templates	String	optional
Translated title	trans-title	An English language title, if the source cited is in a foreign language; 'language' is recommended	String	optional
Type	type	Additional information about the media type of the source; format in sentence case	String	optional
Format	format	Format of the work referred to by 'url'; examples: PDF, DOC, XLS; do not specify HTML	String	optional
arXiv identifier	arxiv	An identifier for arXive electronic preprints of scientific papers	String	optional
ASIN	asin	Amazon Standard Identification Number; 10 characters	String	optional
ASIN TLD	asin-tld	ASIN top-level domain for Amazon sites other than the US	String	optional
Bibcode	bibcode	Bibliographic Reference Code (REFCODE); 19 characters	String	optional
DOI	doi DOI	Digital Object Identifier; begins with '10.'	String	optional
DOI broken date	doi-broken-date	The date that the DOI was determined to be broken	String	optional
ISBN	isbn ISBN	International Standard Book Number; use the 13-digit ISBN where possible	String	optional
ISSN	issn ISSN	International Standard Serial Number; 8 characters; may be split into two groups of four using a hyphen	String	optional
jfm code	jfm JFM	Jahrbuch über die Fortschritte der Mathematik classification code	String	optional
JSTOR	jstor JSTOR	JSTOR identifier	String	optional
LCCN	lccn LCCN	Library of Congress Control Number	String	optional
MR	mr MR	Mathematical Reviews identifier	String	optional
OCLC	oclc OCLC	Online Computer Library Center number	String	optional
OL	ol OL	Open Library identifier	String	optional
OSTI	osti OSTI	Office of Scientific and Technical Information identifier	String	optional
PMC	pmc PMC	PubMed Center article number	String	optional
PMID	pmid PMID	PubMed Unique Identifier	String	optional
RFC	rfc RFC	Request for Comments number	String	optional
SSRN	ssrn SSRN	Social Science Research Network	String	optional
ZBL	zbl ZBL	Zentralblatt MATH journal identifier	String	optional
Archive URL	archive-url	The URL of an archived copy of a web page, if or in case the URL becomes unavailable; requires 'archive-date'	String	optional
Archive date	archive-date	Date when the original URL was archived; do not wikilink	String	optional
Quote	quote quotation	Relevant text quoted from the source; displays last, enclosed in quotes; needs to include terminating punctuation	String	optional
Ref	ref	An anchor identifier; can be made the target of wikilinks to full references; special value 'harv' generates an anchor suitable for the harv template	String	optional
Postscript	postscript	The closing punctuation for the citation; ignored if 'quote' is defined Default .	String	optional
Author mask	author-mask	Replaces the name of the first author with em dashes or text; set to a numeric value 'n' to set the dash 'n' em spaces wide; set to a text value to display the text without a trailing author separator; for example, 'with' instead	String	optional
Display authors	display-authors display-subjects	number of authors to display before 'et al.' is used; default is to do so after 8 of 9 are listed; alias of 'displayauthors' Default 8	Number	optional
Last name 2	last2 author2 surname2 author-last2 author2-last subject2	The surname of the second author; don't wikilink, use 'author-link2'; can suffix with a numeral to add additional authors	String	optional
First name 2	first2 given2 author-first2 author2-first	Given or first name, middle names, or initials of the second author; don't wikilink, use 'author-link'; can suffix with a numeral to add additional authors	String	optional
Last name 3	last3 author3 surname3 author-last3 author3-last subject3	The surname of the third author; don't wikilink, use 'author-link3'.	String	optional
First name 3	first3 given3 author-first3 author3-first	Given or first name, middle names, or initials of the third author; don't wikilink.	String	optional
Last name 4	last4 author4 surname4 author-last4 author4-last subject4	The surname of the fourth author; don't wikilink, use 'author-link4'.	String	optional
First name 4	first4 given4 author-first4 author4-first	Given or first name, middle names, or initials of the fourth author; don't wikilink.	String	optional
Last name 5	last5 author5 surname5 author-last5 author5-last subject5	The surname of the fifth author; don't wikilink, use 'author-link5'.	String	optional
First name 5	first5 given5 author-first5 author5-first	Given or first name, middle names, or initials of the fifth author; don't wikilink.	String	optional
Last name 6	last6 author6 surname6 author-last6 author6-last subject6	The surname of the sixth author; don't wikilink, use 'author-link6'.	String	optional
First name 6	first6 given6 author-first6 author6-first	Given or first name, middle names, or initials of the sixth author; don't wikilink.	String	optional
Last name 7	last7 author7 surname7 author-last7 author7-last subject7	The surname of the seventh author; don't wikilink, use 'author-link7'.	String	optional
First name 7	first7 given7 author-first7 author7-first	Given or first name, middle names, or initials of the seventh author; don't wikilink.	String	optional
Last name 8	last8 author8 surname8 author-last8 author8-last subject8	The surname of the eighth author; don't wikilink, use 'author-link8'.	String	optional
First name 8	first8 given8 author-first8 author8-first	Given or first name, middle names, or initials of the eighth author; don't wikilink.	String	optional
Last name 9	last9 author9 surname9 author-last9 author9-last subject9	The surname of the ninth author; don't wikilink, use 'author-link9'.	String	optional
First name 9	first9 given9 author-first9 author9-first	Given or first name, middle names, or initials of the ninth author; don't wikilink.	String	optional
name-list-style	name-list-style	no description	Unknown	optional

See also

• Category:Encyclopedia source templates contains many wrappers for specific encyclopedias, such as {{EB1911}} for the 1911 Encyclopædia Britannica

{{UF-COinS}}