United States. Subcommittee on Natural Resources, Agriculture Research, and Environment. House. Committee on Science and Technology. Subcommittee on Natural Resources, Agriculture Research, and Environment. http://id.loc.gov/authorities/names/n81140630
Title:
The research needs of the Clean Water Act : hearings before the Subcommittee on Natural Resources, Agriculture Research, and Environment of the Committee on Science and Technology, U.S. House of Representatives, Ninety-seventh Congress, second session, June 8, 10, 1982.
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