Biblioteca Digital

3 resultados para James G McDonald

em Biodiversity Heritage Library, United States

A guide to the study of fresh-water biology, with special reference to aquatic insects and other invertebrate animals and phyto-plankton, by James G. Needham and Paul R. Needham.

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Ptycholepis marshi Newberry : a chondrostean fish from the Newark group of Eastern North America / Bobb Schaeffer --, David H. Dunkle --, Nicholas G. McDonald --.

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v.33:no.12(1975)

The life of inland waters; an elementary textbook of fresh-water biology for students, by James G. Needham and J. T. Lloyd.

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