ISBN 9783934518 hat failed the check­sum digit test.
The following 11 formally correct ISBNs were determined. Starting from these ISBNs the value 9783934518 that you input could have resulted frome one error (error in one digit or transposition of two digits.) You can now check using the links given for the catalogs of amazon.co.uk, amazon.com and amazon.de whether any book is listed for the respective URL. To the home page
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ISBN prefix group: German language
ISBNas­su­med er­rorCatalogs for checking
3-7899-3451-81st and 4th digits were swap­ped. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: former U.S.S.R
ISBNas­su­med er­rorCatalogs for checking
5-7839-3451-8first digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Colombia
ISBNas­su­med er­rorCatalogs for checking
958-39-3451-8second digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Romania
ISBNas­su­med er­rorCatalogs for checking
973-39-3451-8third digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Nigeria
ISBNas­su­med er­rorCatalogs for checking
978-2934-51-8fourth digit was chan­ged. amazon.co.uk amazon.com amazon.de
978-36345-1-8fifth digit was chan­ged. amazon.co.uk amazon.com amazon.de
978-39345-1-1tenth digit was chan­ged. amazon.co.uk amazon.com amazon.de
978-39345-3-8ninth digit was chan­ged. amazon.co.uk amazon.com amazon.de
978-39355-1-8seven­th digit was chan­ged. amazon.co.uk amazon.com amazon.de
978-39543-1-86th and 8th digits were swap­ped. amazon.co.uk amazon.com amazon.de
978-39645-1-8sixth digit was chan­ged. amazon.co.uk amazon.com amazon.de

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