ISBN 8085034783 hat failed the check­sum digit test.
The following 14 formally correct ISBNs were determined. Starting from these ISBNs the value 8085034783 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
0-88503-478-31st and 2nd digits were swap­ped. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: former U.S.S.R
ISBNas­su­med er­rorCatalogs for checking
5-08-503478-3first digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: former Czechoslovakia
ISBNas­su­med er­rorCatalogs for checking
80-7503-478-3third digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-85032-78-3seven­th digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-85034-38-78th and 10th digits were swap­ped. amazon.co.uk amazon.com amazon.de
80-85034-74-3ninth digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-85034-78-6tenth digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-85034-88-3eighth digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-85037-48-37th and 8th digits were swap­ped. amazon.co.uk amazon.com amazon.de
80-85084-78-3sixth digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-85304-78-35th and 6th digits were swap­ped. amazon.co.uk amazon.com amazon.de
80-85634-78-3fifth digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-87034-78-3fourth digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Spain
ISBNas­su­med er­rorCatalogs for checking
84-85034-78-3second digit was chan­ged. amazon.co.uk amazon.com amazon.de

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