ISBN 80729853X was input with 9 digits (one digit too few).
The ISBN 80729853X that you entered has got 9 digits, i.e. one digit is missing to make a valid ISBN. You can find information on the format of an ISBN on the home page of this site. This site has found the following 8 numerically correct ISBN out of which the ISBN that you input coule have resulted by a single error (dropping one digit). You can now check out these suggestions in the databases of the following booksellers' sites: amazon.co.uk (UK), amazon.com (USA) and amazon.de (Germany). Additional sites to search by ISBN (in this case, in catalogs of libraries) are e.g. the Library of Congress (USA) or the search gateway of the Deutsche Bibliothek. To the home page
Diese Seite auf deutsch Diese Seite auf deutsch
Tiu ĉi paĝo en Esperanto (Unikodo)
Tiu cxi pagxo en Esperanto (x-igata)
ISBN prefix group: former Czechoslovakia
ISBNas­su­med er­rorCatalogs for checking
80-672-9853-Xthird digit was drop­ped. amazon.co.uk amazon.com amazon.de
80-7219-853-Xfifth digit was drop­ped. amazon.co.uk amazon.com amazon.de
80-7296-853-Xsixth digit was drop­ped. amazon.co.uk amazon.com amazon.de
80-7298-053-Xseven­th digit was drop­ped. amazon.co.uk amazon.com amazon.de
80-7298-523-Xeighth digit was drop­ped. amazon.co.uk amazon.com amazon.de
80-7298-537-Xninth digit was drop­ped. amazon.co.uk amazon.com amazon.de
80-7929-853-Xfourth digit was drop­ped. amazon.co.uk amazon.com amazon.de
 
ISBN prefix group: Korea, Republic
ISBNas­su­med er­rorCatalogs for checking
89-07-29853-Xsecond digit was drop­ped. amazon.co.uk amazon.com amazon.de

You can check another ISBN with this form.

ISBN output language: