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1.
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[Place of publication not identified] : [publisher not identified], 1998.
Spanish | 3C UNESCO |
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2.
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Coimbra [Portugal] : Coimbra Editora, 1999.
Portuguese | N 13 DIR |
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3.
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Caracas : Servicio Autónomo de la Propiedad Intelectual, Dirección Nacional del Derecho de Autor, 1998.
2da. revisada.
Spanish | N 13 ANT.D |
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4.
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Montevideo : Organización Mundial de la Propiedad Intelectual, 1997.
1a.
Spanish | N 13 CON |
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5.
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[Place of publication not identified] : [publisher not identified], 1997.
French | 53 FR |
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6.
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Coimbra [Portugal] : Coimbra Editora, 2001.
Portuguese | N 13 DIR |
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7.
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Madrid [Spain] : Editorial Reus, 1999.
Spanish | N 13 VID.N |
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