The Environmental Protection Agency's post 1987 ozone and carbon monoxide attainment strategy : hearings before the Subcommittee on Environmental Protection of the Committee on Environment and Public Works, United States Senate, one hundredth congress, first session, December 2, 1987.
United States.Congress.Senate.Committee on Environment and Public Works.Subcommittee on Environmental Protection.
United States.Environmental Protection Agency.
Washington : Government Printing Office,
1988.
Environmental protection
Ozone.
Carbon monoxide.