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Diagnóstico precóz de preñez en porcinos mediante prueba inmunológica de aglutinación directa
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19970721
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Determinación de la tolerancia del algodonero al suministro edáfico del Biuret, en un suelo de El Espinal (Tolima)
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Frye C., Alberto
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GL/598.2918/M613/2063/en
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The species of birds of South America: and their distribution
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Meyer De Schauensee, Rodolphe
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19970511
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19970511
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GL/598.29186/M613/2064/en
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The birds of Colombia: and adjacent areas of South and Central America
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Meyer De Schauensee, Rodolphe
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19970511
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19970511
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GL/598.2918/M613/2065/en
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A guide to the birds of South America
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Meyer De Schauensee, Rodolphe
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19970511
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19970511
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GL/599.85/M621/2066/en
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Comparative ecology and behaviour of primates
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Michael, Richard P
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19970510
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19970510
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GL/598.29187/D312/2067/en
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Deery de Phelps, Kathleen
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19970620
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GL/598.29187/D312b/2068/en
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Birds of Venezuela
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Deery de Phelps, Kathleen
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19970620
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GL/598.2/D324/2069/en
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Type specimens of birds in the United States National Museum
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Deignan, Herbert Girton
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19970620
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GL/598.2924/D332/2070/en
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The waterfowl of the world
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Delacour, Jean
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19970620
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