Delete ISBNS for formats other than what is being described by the bibliographic record. For example, delete the ISBN for the ebook from a record for the regular print version. This is a local edit only, do not delete these from the OCLC record.
The ISBN for the paperback may be retained in the record for the hardback if the paperback meets the OCLC Bibliographic Formats and Standards match criteria for the paperback and hardback to be attached to the same record. Also see the Differing Editions page [forthcoming].
Rev. 10-2024