Ecology and Classification of North American Freshwater Invertebrates
References
^ Alan P. Covich & James H. Thorp (1991). Ecology and Classification of North American Freshwater Invertebrates, [[Academic Press]]. Product. ISBN 9780126906455 (revised Aug 2013)^ Alan P. Covich & James H. Thorp (1991). Ecology and Classification of North American Freshwater Invertebrates, [[Academic Press]]. Wiki. ISBN 9780126906455 (revised Aug 2013)
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