ISBN 8072772528X was input with 11 digits (one digit too much)

The ISBN 8072772528X that you input has 11 digits, i.e. one digit more than a valid ISBN. You can find information on the format of an ISBN on the home page of this site. This site has found the following 1 numerically correct ISBN out of which the ISBN that you input could have resulted by a single error (adding one extraneous digit). You can now check out these suggestions in the databases of the following booksellers' sites: (UK), (USA) and (Germany). Additional sites to search by ISBN (in this case, in catalogs of libraries) are e.g. the Library of Congress (USA) or the search gateway of the Deutsche Bibliothek. To the home page
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80-7277-252-Xtenth digit was ad­ded.

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