Munurin millum rættingarnar hjá "ISBN"
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s r2.7.1) (bottur broytur: da:Internationalt Standardbognummer |
EileenSanda (kjak | íkøst) |
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Linja 57:
* [http://www.gs1.org/barcodes/support/check_digit_calculator EAN-eftirlitstal]
* [http://mmak.freeservers.com/isdn.html?x=552673809 ISBN-10-eftirlitstal]
[[Bólkur:Bøkur]]
[[af:ISBN]]
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