by Lisa K. Ham ... [and others] ; prepared in cooperation with the U.S. Army, Aberdeen Proving Ground Support Activity, Environmental Management Division
by S.G. Robson ... [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the Colorado Department of Natural Resources, Division of Water Resources, Office of the State Engineer ... [and others]
National Outdoor Action Conference and Exposition on Aquifer Remediation, Ground Water Monitoring, and Geophysical Methods (8th : 1994 : Minneapolis, Minn.)
National Outdoor Action Conference and Exposition on Aquifer Remediation, Ground Water Monitoring, and Geophysical Methods (9th : 1995 : Las Vegas, Nev.)