Groundwater-related programs of the USGS and the EPA : hearings before the Subcommittee on Water and Power of the Committee on Energy and Natural Resources, United States Senate, one hundredth Congress, first session ... June 5 and 18, 1987.
United States.Congress.Senate.Committee on Energy and Natural Resources.Subcommittee on Water and Power.
Washington : USGPO,
1987.
United States. Geological Survey.
United States. Environmental Protection Agency.
Groundwater