Biota of freshwater ecosystems;
identification manual.

APA Citation

Tjepkema, J. P., Ferris, J. Mason., Burch, J. B. (John Bayard)., Ferris, V. R. (Virginia Rogers)., Hobbs, H. Holcombe., Klemm, D. J., Williams, W. D. (William David)., Brown, H. P., Holsinger, J. R., Foster, N. (Nancy Marie)., Cressey, R. F., Kenk, R., Oceanography and Limnology Program (Smithsonian Institution)., United States. Environmental Protection Agency. (1972). Biota of freshwater ecosystems: identification manual. [Washington: U.S. Environmental Protection Agency] for sale by the Supt. of Docs., U.S. Govt. Print. Off..

MLA Citation

United States. Environmental Protection Agency, et al.. Biota of Freshwater Ecosystems: Identification Manual. [Washington: U.S. Environmental Protection Agency] for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1972.

Warning: These citations may not always be complete (especially for serials).