ISBN 8012001933 hat failed the check­sum digit test.
The following 16 formally correct ISBNs were determined. Starting from these ISBNs the value 8012001933 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
0-01-280193-31st and 5th digits were swap­ped. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: China, People's Republic
ISBNas­su­med er­rorCatalogs for checking
7-01-200193-3first digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: former Czechoslovakia
ISBNas­su­med er­rorCatalogs for checking
80-12-00123-3eighth digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-12-00193-4tenth digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-12-00199-3ninth digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-12-00493-3seven­th digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-12-01093-36th and 7th digits were swap­ped. amazon.co.uk amazon.com amazon.de
80-12-03193-06th and 10th digits were swap­ped. amazon.co.uk amazon.com amazon.de
80-12-09193-3sixth digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-12-20193-3fifth digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-12-30190-35th and 9th digits were swap­ped. amazon.co.uk amazon.com amazon.de
80-210-0193-33rd and 4th digits were swap­ped. amazon.co.uk amazon.com amazon.de
80-320-0191-33rd and 9th digits were swap­ped. amazon.co.uk amazon.com amazon.de
80-8200-193-3third digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: India
ISBNas­su­med er­rorCatalogs for checking
81-02-00193-32nd and 3rd digits were swap­ped. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Brazil
ISBNas­su­med er­rorCatalogs for checking
85-12-00193-3second digit was chan­ged. amazon.co.uk amazon.com amazon.de

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