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Methods for aquatic toxicity identification evaluations phase II toxicity identification procedures

Durhan, E. J.
Duluth, MN. : U.S. Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory, [1993] 1993

Methods for aquatic toxicity identification evaluations phase III toxicity confirmation procedures f

Mount, D. I.
Duluth, MN : U.S. Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory, [1993] 1993

Methods for aquatic toxicity identification evaluations : phase I : toxicity characterization proced

Duluth, MN : U.S. Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory, [1991] 1991

Toxicity identification evaluation characterization of chronically toxic effluents : phase I

Norberg-King, Teresa.
Duluth, MN : U.S. Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory, 1992. 1992