U.S. Environmental Protection Agency Office of Research and Development, Center for Environmental Research Information, Robert S. Kerr Environmental Research Laboratory
prepared in cooperation with the U.S. Environmental Protection Agency and Montana Department of Health and Evnironmental Sciences--Water Quality Bureau
Date
1993
Series
Special publication (Montana Bureau of Mines and Geology) ; 106
by Bradford Butman ... [and others] ; prepared in cooperation with the U.S. Environmental Protection Agency under cooperative agreement CX-813547-01-0 with the Woods Hole Oceanographic Institution
by Glenn A. Hearne ... [and others] ; prepared in cooperation with the Colorado Department of Health, U.S. Environmental Protection Agency, and the U.S. Soil Conservation Service