by Philip A. Gilderhus. Residues of malachite green in muscle, eggs, and fry of treated Atlantic salmon and chinook salmon / by J.L. Allen. Effects of water temperature, hardness, and pH on the toxicity of benzocaine to eleven freshwater fishes / by Terry D. Bills, George E. Howe, and Leif L. Marking
La Crosse, Wis. : U.S. Fish and Wildlife Service, National Fisheries Research Center--La Crosse ; Springfield, VA : National Technical Information Service [distributor], 1990