Clean air protection problems at national parks and wilderness areas : hearing before the Environment, Energy, and Natural Resources Subcommittee of the Committee on Government Operations, House of Representatives, One Hundred Third Congress, second session, April 29, 1994.
|Corporate Author:||United States.|
Washington : U.S. G.P.O. : 1995.
> United States
> Physiological effect.
Air > Pollution > United States > Prevention.
Air quality management > United States.
Environmental monitoring > United States.
National parks and reserves > United States.
Wilderness areas > United States.
Distributed to some depository libraries in microfiche.
Shipping list no.: 95-0030-P.
iv, 212 p. :
ill., maps ;
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