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Freshwater macroinvertebrates of Northeastern North America
By Peckarsky, B. L., P. Fraissinet, M. A. Penton, and D. J. Conklin, Jr.
Cornell University Press, Ithaca, NY., 1990
ISBN: 0801496888
Cite: 250658 with citation markup [cite:250658]
easy-to-use illustrated keys to genera; the link can be added to many order and fam. pages