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
574.52632 / MAC
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
574.52632 / MAC