Water Resources research activities of the U.S. Geological Survey and the National Ground Water Contamination Information Act : hearings before the Subcommittee on Water Resources of the Committee on Public Works and Transportation, House of Representatives, one hundredth Congress, first session on H.R. 791 ... , July 8 and 23, 1987.
United States.Congress.House.Committee on Public Works and Transportation.Subcommittee on Water Resources.
Washington : USGPO,
1987.
Water resources development