International Symposium on Processes Governing the Movement and Fate of Contaminants in the Subsurface Environment (1989 : Stanford University, Calif.)
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
Paula Johnson ... [and others] ; in cooperation with the Fairbanks North Star Borough, U.S. Environmental Protection Agency and Alaska Department of Environmental Conservation