Proceedings of the third USA-USSR symposium on the effects of pollutants upon aquatic ecosystems USA-USSR Symposium on the Effects of Pollutants Upon Aquatic Ecosystems Environmental Research Laboratory, Duluth, 1975 ; 2nd, Borok, Russia ; 3rd, Borok, Russia) 1976- creator text book Duluth, Minn U.S. Environmental Protection Agency 1980 1978 1980
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ENG 1st and 2nd issued in 1 volume in 1978, 3rd issued in 1980. Aquatic ecology Congresses Environmental aspects Pollution Soviet Union United States QH541.5.W3 U3 https://www.biodiversitylibrary.org/bibliography/4785 7208800 OEN