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Template:ISBN missing
[ISBN missing]
Template documentation​[​view​] [edit] [history] [purge]
This template should not be used in citation templates such as Citation Style 1 and Citation Style 2, because it includes markup that will pollute the COinS metadata they produce; see Wikipedia:COinS.
This template should not be substituted.
{{ISBN?}}
{{ISBN missing}} is an inline cleanup template for flagging a reference that is missing the International Standard Book Number (ISBN) of the source document.
Usage
{{ISBN missing|date=June 2021}}
With a reference formatted via a Citation Style 1 template (,, , etc.):
  1. Place {{ISBN missing|date=June 2021}} outside the citation template
  2.  Do not place it in the |isbn= parameter of a Citation Style 1 template. The inclusion of text other than the digits of an ISBN in |isbn= corrupts the citation's COinS metadata and the citation's link to Special:BookSources.
With a free-form reference, just append {{ISBN missing|date=June 2021}} to the end of the citation.
How to fix the problem flagged by this template
Do not remove the {{ISBN missing}} template without fixing the problem in one of the following ways:
Determine the ISBN, add it to the reference, then remove the {{ISBN missing}} template
For a reference formatted via a Citation Style 1 template, use its ISBN parameter:
|isbn=​X-XXXX-XXXX-X
For a free-form reference:
  1. Add the ISBN as appropriate to the citation, preferably using the {{ISBN}} template, or...
  2. Better yet, convert the citation to a Citation Style 1 template.
If you are certain that the source document does not have an ISBN, add a {{No ISBN}} template to the reference, then remove the {{ISBN missing}} template
For a reference formatted via a Citation Style 1 template:
1. Use its ISBN parameter to state explicitly that the ISBN does not exist:
|isbn=<!-- ISBN unspecified --> (you must use HTML <!-- --> comment tags to hide the message from the citation processing software)
2. Place outside the citation template
For free-form reference, just add
{{No ISBN}}
to the end of the citation.
If you remove the {{ISBN missing}} template without fixing the problem in one of the above ways, someone else will come along later and flag the reference with {{ISBN missing}} again!
See also
The above documentation is transcluded from Template:ISBN missing/doc. (edit | history)
Editors can experiment in this template's sandbox (create | mirror) and testcases (create) pages.
Please add categories to the /doc subpage. Subpages of this template.
Last edited on 10 August 2020, at 00:35
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