Biblioteca Digital

4 resultados para Utility value

em Biodiversity Heritage Library, United States

A report upon the scallop fishery of Massachusetts : including the habits, life history of Pecten irradians, its rate of growth, and other facts of economic value.

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Animal experimentation; a series of statements indicating its value to biological and medical science.

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Variation in scales in Dermophis mexicanus (Amphibia, Gymnophiona) : are scales of systematic utility? / Maravalee H. Wake, Kristen M. Nygren.

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n.s. no.36(1987)

The dermal armor of the cyamodontoid placodonts (Reptilia, Sauropterygia) : morphology and systematic value / Olivier Rieppel --.

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n.s. no.46(2002)