ISBN 1439194867 hat failed the check­sum digit test.
The following 13 formally correct ISBNs were determined. Starting from these ISBNs the value 1439194867 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
1-349-19486-72nd and 3rd digits were swap­ped. amazon.co.uk amazon.com amazon.de
1-4311-9486-7fourth digit was chan­ged. amazon.co.uk amazon.com amazon.de
1-4371-9486-94th and 10th digits were swap­ped. amazon.co.uk amazon.com amazon.de
1-4391-0486-7sixth digit was chan­ged. amazon.co.uk amazon.com amazon.de
1-4391-9186-7seven­th digit was chan­ged. amazon.co.uk amazon.com amazon.de
1-4391-9446-7eighth digit was chan­ged. amazon.co.uk amazon.com amazon.de
1-4391-9480-7ninth digit was chan­ged. amazon.co.uk amazon.com amazon.de
1-4391-9486-6tenth digit was chan­ged. amazon.co.uk amazon.com amazon.de
1-4398-9416-75th and 8th digits were swap­ped. amazon.co.uk amazon.com amazon.de
1-4791-9486-7third digit was chan­ged. amazon.co.uk amazon.com amazon.de
1-934194-86-72nd and 4th digits were swap­ped. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: French language
ISBNas­su­med er­rorCatalogs for checking
2-439-19486-7first digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: China, People's Republic
ISBNas­su­med er­rorCatalogs for checking
7-439-19486-11st and 10th digits were swap­ped. amazon.co.uk amazon.com amazon.de

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