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.)
sponsored by the Society of Economic Geologists and the Mining and Exploration Division, Society of Mining Engineers, American Institute of Mining, Metallurgical and Petroleum Engineers at Dallas, Texas, February 1974 / edited by Ralph W. Marsden
sponsored jointly by the U.S. National Committee on Geochemistry, National Research Council, National Academy of Sciences, and the U.S. Department of Energy, Office of Energy Research, Office of Basic Energy Sciences