ISBN 3-548-35968 was input with 9 digits (one digit too few).
The ISBN 3-548-35968 that you entered has got 9 digits, i.e. one digit is missing to make 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 10 numerically correct ISBN out of which the ISBN that you input coule have resulted by a single error (dropping one digit). You can now check out these suggestions in the databases of the following booksellers' sites: amazon.co.uk (UK), amazon.com (USA) and amazon.de (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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ISBN prefix group: German language
ISBNas­su­med er­rorCatalogs for checking
3-454-83596-8second digit was drop­ped. amazon.co.uk amazon.com amazon.de
3-547-83596-8fourth digit was drop­ped. amazon.co.uk amazon.com amazon.de
3-548-31596-8sixth digit was drop­ped. amazon.co.uk amazon.com amazon.de
3-548-35096-8seven­th digit was drop­ped. amazon.co.uk amazon.com amazon.de
3-548-35968-Xtenth digit was drop­ped. amazon.co.uk amazon.com amazon.de
3-548-35969-8ninth digit was drop­ped. amazon.co.uk amazon.com amazon.de
3-548-35986-8eighth digit was drop­ped. amazon.co.uk amazon.com amazon.de
3-548-53596-8fifth digit was drop­ped. amazon.co.uk amazon.com amazon.de
3-584-83596-8third digit was drop­ped. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: former U.S.S.R
ISBNas­su­med er­rorCatalogs for checking
5-354-83596-8first digit was drop­ped. amazon.co.uk amazon.com amazon.de

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