APA (7th ed.) Citation

Geckler, J. R. (1976). Validity of laboratory tests for predicting copper toxicity in streams. U.S. Environmental Research Laboratory-Duluth, Office of Research and Development, U.S. Environmental Protection Agency.

Chicago Style (17th ed.) Citation

Geckler, Jack R. Validity of Laboratory Tests for Predicting Copper Toxicity in Streams. Duluth, Minnesota: U.S. Environmental Research Laboratory-Duluth, Office of Research and Development, U.S. Environmental Protection Agency, 1976.

MLA (9th ed.) Citation

Geckler, Jack R. Validity of Laboratory Tests for Predicting Copper Toxicity in Streams. U.S. Environmental Research Laboratory-Duluth, Office of Research and Development, U.S. Environmental Protection Agency, 1976.