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1.
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Roma [Italy] : Biblioteca Nazionale Centrale di Roma, 1980.
Italian | 13 IT |
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2.
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[Place of publication not identified] : [publisher not identified], 1980.
French | 53 FR |
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3.
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Roma [Italy] : Biblioteca Nazionale Centrale di Roma, 1979.
Italian | 23 IT |
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4.
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Paris : Dunod, c1982.
French | N 621 VES.M |
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5.
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[Paris, France] : [Association frandcaise pour la diffusion du droit d'auteur national et international], 1975.
French | 53 FR |
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6.
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[Geneva, Switzerland] : [World Intellectual Property Organization], 1987.
English | 6B OMPI |
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7.
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[Paris, France] : [UNESCO], 1987.
French | 6A OMPI |
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