Bookland: Difference between revisions

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(→‎History: minor copy edit)
* [http://www.isbn-13.info Informational website which converts ISBN-10 to ISBN-13]
* [http://www.isbn-us.com US agency to obtain ISBN numbers]
* [http://isbn-information.com/ean.html The EAN System]{{dead link|date=April 2016}}
 
[[Category:Book publishing]]