Sabanas del Valle de Caracas / by Vareschi, Volkmar

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Mamíferos de Jujuy, Argentina / by Díaz, M. Mónica

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Marsupiales de la Argentina / by Massoia, Elio

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Roedores : guía de la provincia de Buenos Aires / by Gómez Villafañe, I. E.

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Aves de Tierra del Fuego y Cabo de Hornos : guía de campo / by Clark, Ricardo

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Bioestadística / by Ríus Díaz, Francisca

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Instrucciones para formar herbarios / by Castellanos, Alberto, 1896-1968

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Report on the status, importance and protection on the montane forest / by Synott, Timothy J.

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Introducción a la bioestadística / by Bancroft, Huldah

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Bibliografía botánica de Córdoba / by Sparn, Enrique

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Evolución : síntesis moderna / by Huxley, Julián

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Binnenmollusken / by Jordan, Hermann

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Herencia y otros ensayos de ciencia popular / by Huxley, Julian

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General zoology of the invertebrates / by Carter, G. S.

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Wissenschaftliche Ergebnisse deer Deutschen Gran Chaco-Expedition / by Laubmann, Alfred

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Snakes of the world / by Ditmars, Raymond L.

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Mendelismo y evolución / by Ford, E. B.

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Élements de chimie végétale / by Wattiez, N.

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Introduction á la biologie expérimentale / by Vignon, Paul

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Biology of the vertebrates / by Walter, Herbert E.

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