Burch, J. B. (1972). Freshwater sphaeriacean clams (Mollusca: Pelecypoda) of North America. Biota of Fresh-water Eco-systems, Identification Manual No. 3, Water Pollution Control Research Series, United States Environmental Protection Agency. pp. i-viii, 1-31.
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Burch, J. B.
1972
<i>Freshwater sphaeriacean clams (Mollusca: Pelecypoda) of North America</i>. Biota of Fresh-water Eco-systems, Identification Manual No. 3, Water Pollution Control Research Series, United States Environmental Protection Agency. pp. i-viii, 1-31.
