ISBN 3520346013 hat failed the check­sum digit test.
The following 15 formally correct ISBNs were determined. Starting from these ISBNs the value 3520346013 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
3-420-35601-32nd and 6th digits were swap­ped. amazon.co.uk amazon.com amazon.de
3-520-31601-3sixth digit was chan­ged. amazon.co.uk amazon.com amazon.de
3-520-33601-46th and 10th digits were swap­ped. amazon.co.uk amazon.com amazon.de
3-520-34501-3seven­th digit was chan­ged. amazon.co.uk amazon.com amazon.de
3-520-34601-Xtenth digit was chan­ged. amazon.co.uk amazon.com amazon.de
3-520-34661-3eighth digit was chan­ged. amazon.co.uk amazon.com amazon.de
3-520-64601-3fifth digit was chan­ged. amazon.co.uk amazon.com amazon.de
3-521-34601-3fourth digit was chan­ged. amazon.co.uk amazon.com amazon.de
3-523-34601-04th and 10th digits were swap­ped. amazon.co.uk amazon.com amazon.de
3-526-34001-34th and 7th digits were swap­ped. amazon.co.uk amazon.com amazon.de
3-530-34601-23rd and 10th digits were swap­ped. amazon.co.uk amazon.com amazon.de
3-570-34601-3third digit was chan­ged. amazon.co.uk amazon.com amazon.de
3-7203-4601-3second digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Brazil*
ISBNas­su­med er­rorCatalogs for checking
65203430131st and 7th digits were swap­ped. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: China, People's Republic
ISBNas­su­med er­rorCatalogs for checking
7-5203-4601-3first digit was chan­ged. amazon.co.uk amazon.com amazon.de

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