research needs of the Clean Water Act
Subtitle: 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.
Publisher: U.S. G.P.O.
Published: 1983
Place of publication: Washington
Language: eng
Number of pages: 626
Subjects: United States. -- Environmental Protection Agency.; Federal aid to water quality management -- United States.; Water use -- United States.
Notes: "No. 175."

Includes bibliographies.