ISBN 808611308X hat failed the check­sum digit test.

The following 10 formally correct ISBNs were determined. Starting from these ISBNs the value 808611308X 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
1-0861-1308-Xfirst digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: former Czechoslovakia
ISBNas­su­med er­rorCatalogs for checking
80-261-1308-Xthird digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-86112-08-Xseven­th digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-86113-06-Xninth digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-86113-08-6tenth digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-86113-68-Xeighth digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-86193-08-Xsixth digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-86413-08-Xfifth digit was chan­ged. amazon.co.uk amazon.com amazon.de
80-87113-08-Xfourth digit was chan­ged. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Norway
ISBNas­su­med er­rorCatalogs for checking
82-8611-308-Xsecond digit was chan­ged. amazon.co.uk amazon.com amazon.de

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