Category:Pages with ISBN errors

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This is a tracking category for CS1 citations that have ISBN errors.

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Check |isbn= value

Citation Style 1 templates that contain |isbn= are checked to ensure that the ISBN is the proper length (ten or thirteen digits), that the ISBN uses the correct optional separators (simple space or hyphen), and that the final check digit is correct according to the ISBN specification. Only one ISBN is allowed in this field because the whole |isbn= value is included in the citation's COinS metadata. See also Wikipedia:COinS. More than one ISBN, or characters that are not part of the ISBN, corrupt the COinS metadata and may also corrupt the link to Special:BookSources.

To resolve this error, ensure that the |isbn= value is correct, that only one ISBN is used, that the proper optional separators are used, and that no other text is included. Use the 13-digit ISBN when it is available. When a 10-digit ISBN is used, if the check-digit is a lowercase 'x', change it to an uppercase 'X'.

In very rare cases, publishers have released books with malformed ISBNs. If you are certain that a non-conforming ISBN truly corresponds to the published work, then you can add |ignore-isbn-error=true to the citation in order to suppress the error message. In many cases books may have been reissued with a corrected ISBN. Use a corrected ISBN when possible.

See also Wikipedia:ISBN.

Pages with this error are automatically placed in Category:Pages with ISBN errors.[a]


Notes[edit]

  1. ^ Pages in the Book talk, Category talk, Draft, Draft talk, Education Program talk, File talk, Help talk, MediaWiki talk, Module talk, Portal talk, Talk, Template talk, TimedText talk, User, User talk, and Wikipedia talk namespaces are not included in the error tracking categories.

Pages in category "Pages with ISBN errors"

The following 200 pages are in this category, out of 4,840 total. This list may not reflect recent changes (learn more).

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