A key to the Nymphs of the British species of Ephemeroptera, with notes on their ecology

Macan, T.T

A key to the Nymphs of the British species of Ephemeroptera, with notes on their ecology - 3d ed - Cumbria Freshwater Biological Association 1979 - 80p. Illustration - Freshwater Biological Association Scientific Publication, No.20 .


LIFE SCIENCE

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