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Hartmut Walravens

Hartmut Walravens (born 1944) is a German librarian. He was the director of the International ISBN Agency ?-2006Who are we? International ISBN Agency Archived…

Hartmut Walravens (born 1944) is a German librarian. He was the director of the International ISBN Agency ?-2006Who are we? International ISBN Agency Archived 08/26/2000 and the International ISMN Agency ?-2006.Who are we? International ISMN Agency Archived 12/20/2001 He is presently Chairman of the International ISMN Agency 2006–present.The International ISMN Agency

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