References
Douglas GS. 2001. Pennak's Freshwater Invertebrates of the United States. 4th ed. New York (NY): John Wiley & Sons, Inc. 638p.
Forest HS. 1954. Handbook of Algae. Knoxville (TN): UT Press. 467p.
Rainis KG and Russell BJ. 1996. Guide to Microlife. Danbury (CT): Franklin Watts. 287p.
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