Nondegradation policy of the Clean Air Act : hearing before the Subcommittee on Air and Water Pollution of the Committee on Public Works, United States Senate, Ninety-third Congress, first session, July 24, 1973
Print Book, English, 1973
U.S. Govt. Print. Off, United States Government Printing Office, Washington, Washington, DC, 1973
iii, 418 pages : illustrations ; 23 cm
1011447993
"Serial no. 93-H16."