ISBN 9630436025 hat failed the check­sum digit test.
The following 12 formally correct ISBNs were determined. Starting from these ISBNs the value 9630436025 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: Japan
ISBNas­su­med er­rorCatalogs for checking
4-630-93602-51st and 5th digits were swap­ped. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: China, People's Republic
ISBNas­su­med er­rorCatalogs for checking
7-6304-3602-5first digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Croatia
ISBNas­su­med er­rorCatalogs for checking
953-0-43602-5second digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Hungary
ISBNas­su­med er­rorCatalogs for checking
963-04-3102-5seven­th digit was chan­ged. amazon.co.uk amazon.com amazon.de
963-04-3602-7tenth digit was chan­ged. amazon.co.uk amazon.com amazon.de
963-04-3603-5ninth digit was chan­ged. amazon.co.uk amazon.com amazon.de
963-04-3620-58th and 9th digits were swap­ped. amazon.co.uk amazon.com amazon.de
963-04-3682-5eighth digit was chan­ged. amazon.co.uk amazon.com amazon.de
963-08-3602-5fifth digit was chan­ged. amazon.co.uk amazon.com amazon.de
963-543-602-5fourth digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Iran
ISBNas­su­med er­rorCatalogs for checking
964-03-3602-53rd and 5th digits were swap­ped. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Ukraine
ISBNas­su­med er­rorCatalogs for checking
966-04-3602-5third digit was chan­ged. amazon.co.uk amazon.com amazon.de

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