Sijthoff & Noordhoff 1978-1979 [2d ed.] / edited by Heinz David

v. 1 , v. 2 , v. 3 , v. 4

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edited by H.L. Pinner

A.W. Sijthoff 1953-1960 The protection of intellectual and industrial property throughout the world, a library of encyclopedias 1

v. 1 , v. 2 , v. 3 , v. 4 , v. 5

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