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.
|Corporate Author:||United States.|
Washington : U.S. G.P.O. : 1992.
Water Pollution /
Water Pollution / history /
Water quality > Water quality / United States > Water quality / United States / History.
Water > Water / Pollution > Water / Pollution / Law and legislation > Water / Pollution / Law and legislation / United States > Water / Pollution / Law and legislation / United States / History.
iii, 82 p. ;
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