ISBN 0521202832 hat failed the check­sum digit test.
The following 11 formally correct ISBNs were determined. Starting from these ISBNs the value 0521202832 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: English language
ISBNas­su­med er­rorCatalogs for checking
0-521-20213-2eighth digit was chan­ged. amazon.co.uk amazon.com amazon.de
0-521-20283-3tenth digit was chan­ged. amazon.co.uk amazon.com amazon.de
0-521-20289-2ninth digit was chan­ged. amazon.co.uk amazon.com amazon.de
0-521-20583-2seven­th digit was chan­ged. amazon.co.uk amazon.com amazon.de
0-521-29283-2sixth digit was chan­ged. amazon.co.uk amazon.com amazon.de
0-521-40283-2fifth digit was chan­ged. amazon.co.uk amazon.com amazon.de
0-522-10283-24th and 5th digits were swap­ped. amazon.co.uk amazon.com amazon.de
0-529-20283-2fourth digit was chan­ged. amazon.co.uk amazon.com amazon.de
0-591-20283-2third digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: French language
ISBNas­su­med er­rorCatalogs for checking
2-521-20083-21st and 7th digits were swap­ped. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Brazil
ISBNas­su­med er­rorCatalogs for checking
85-212-0203-21st and 8th digits were swap­ped. amazon.co.uk amazon.com amazon.de

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