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New microbial indicators of wastewater chlorination efficiency,
by Richard S. Engelbrecht [and others].

APA Citation

Engelbrecht, R. S., United States. Environmental Protection Agency. Office of Research and Development. (1974). New microbial indicators of wastewater chlorination efficiency. Washington: U.S. Environmental Protection Agency, Office of Research and Development; for sale by the Supt. of Docs., U.S. Govt. Print. Off..

MLA Citation

Engelbrecht, Richard S, and United States. Environmental Protection Agency. Office of Research and Development. New Microbial Indicators of Wastewater Chlorination Efficiency. Washington: U.S. Environmental Protection Agency, Office of Research and Development; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1974.

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