Twentieth anniversary of the Clean Water Act : hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Second Congress, second session, September 22, 1992.

Coverage: Washington : U.S. G.P.O. : 1992.

Volumes:

The twentieth anniversary of the Clean Water Act : hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Second Congress, second session, September 22, 1992. (Washington : U.S. G.P.O. : 1992.)