Title
U.S. Geological Survey Toxic Substances Hydrology Program : proceedings of the technical meeting, Colorado Springs, Colorado, September 20-24, 1993 / [compiled] by David W. Morganwalp and David A. Aronson.
Published
Tallahassee, Fla. : U.S. Geological Survey ; Denver, CO : Earth Science Information Center, Open-File Reports Section [distributor], 1996.