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1.
|
Eastbourne, East Sussex : J. Offord, 1980.
English | N 141 MCF.C |
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2.
|
[Paris, France] : [UNESCO], 1980.
French | 6A OMPI |
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3.
|
[Paris, France] : [UNESCO], 1979.
Polish | 6A OMPI |
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|
4.
|
[Place of publication not identified] : [publisher not identified], 1983.
English | 68 US |
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5.
|
[Place of publication not identified] : [publisher not identified], 1983.
English | 68 US |
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6.
|
London : McGraw-Hill (UK), c1982.
English | N 13 MCF.P |
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7.
|
[Geneva, Switzerland] : [World Intellectual Property Organization], 1980.
English | 6B OMPI |
|
|
8.
|
[Geneva, Switzerland] : [World Intellectual Property Organization], 1979.
English | 6B OMPI |
|
|
9.
|
Luxemburgo : Oficina de Publicaciones Oficiales de las Comunidades Europeas, 1987.
abreviada.
Spanish | C 410 TRA |
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