AS 1519:2018 pdf free.Information and documentation- International Standard Book Number (ISBN). 4.2 GS1 element The first clement of an ISBN shall be a three-digit GS1 prefix. Technical information specifying valid GSI prefixes assigned to ISBN shall be available from the Registration Authority (see Annex B) for this document. 4.3 Registration group element The second element of an ISBN shall indicate...
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