ISBN 9781441970 hat failed the check­sum digit test.
The following 12 formally correct ISBNs were determined. Starting from these ISBNs the value 9781441970 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
3-7814-4197-0first digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: China, People's Republic
ISBNas­su­med er­rorCatalogs for checking
7-7814-4199-01st and 9th digits were swap­ped. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Netherlands
ISBNas­su­med er­rorCatalogs for checking
94-8144-197-0second digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Caribbean Community
ISBNas­su­med er­rorCatalogs for checking
976-1-44197-0third digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Nigeria
ISBNas­su­med er­rorCatalogs for checking
978-140-197-46th and 10th digits were swap­ped. amazon.co.uk amazon.com amazon.de
978-143-197-0sixth digit was chan­ged. amazon.co.uk amazon.com amazon.de
978-144-107-0eighth digit was chan­ged. amazon.co.uk amazon.com amazon.de
978-144-197-6tenth digit was chan­ged. amazon.co.uk amazon.com amazon.de
978-144-897-0seven­th digit was chan­ged. amazon.co.uk amazon.com amazon.de
978-154-197-0fifth digit was chan­ged. amazon.co.uk amazon.com amazon.de
978-44119-7-04th and 6th digits were swap­ped. amazon.co.uk amazon.com amazon.de
978-54419-7-0fourth digit was chan­ged. amazon.co.uk amazon.com amazon.de

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