Raamatu ajalugu - kokkuvõte
edition of every book produced by participating publishers, world wide. It is managed by the ISBN
Society. An ISBN has four parts: the first part is the country code, the second the publisher code,
and the third the title code. The last part is a check digit, and can take values from 09 and X (10).
The EAN Barcodes numbers for books are derived from the ISBN by prefixing 978, for Bookland,
and calculating a new check digit.
Commercial publishers in industrialized countries generally assign ISBNs to their books, so buyers
may presume that the ISBN is part of a total international system, with no exceptions. However
many government publishers, in industrial as well as developing countries, do not participate fully in
the ISBN system, and publish books which do not have ISBNs.
A large or public collection requires a catalogue. Codes called "call numbers" relate the books to the
catalogue, and determine their locations on the shelves. Call numbers are based on a Library
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