H.R. 2253--the Ground Water Research, Development and Demonstration Act, and H.R. 791--the National Ground Water Contamination Information Act of 1987 : hearing before the Subcommittee on Natural Resources, Agriculture Research, and Environment of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundredth Congress, first session, July 21, 1987

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United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Natural Resources, Agriculture Research, and Environment

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