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1
Proceedings of the first and second USA-USSR symposia on the effects of pollutants upon aquatic ecosystems.
Duluth, Minn. : [Springfield, Va. : Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ; available through National Technical Information Service], 1978

Government Document Conference Proceeding Book
2
Proceedings of the third USA-USSR Symposium on the Effects of Pollutants Upon Aquatic Ecosystems : theoretical aspects of aquatic toxicology, July 2-6, 1979, Borok, Jaroslav Oblast, USSR /
Duluth, Minn. : Springfield, Va. : Environmental Research Laboratory-Duluth, Office of Research and Development, U.S. Environmental Protection Agency ; Available to the public through National Technical Information Service [distributor], 1980

Government Document Conference Proceeding Book
3
Selection, management, and utilization of biosphere reserves : proceedings of the United States-Union of Soviet Socialist Republics Symposium on Biosphere Reserves, Moscow, USSR, May 1976 /
[Portland, Or.] : Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1979

Government Document Conference Proceeding Book
4
Successional research and environmental pollutant monitoring associated with biosphere reserves : proceedings : second U.S.-U.S.S.R. Symposium on Biosphere Reserves, March 10-15, 1980, Everglades National Park, Florida, U.S.A. /
[Denver, Colo.] : Denver Service Center, National Park Service, 1981

Government Document Conference Proceeding Book
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