Additions to the national wilderness preservation system : hearings before the Subcommittee on Public Lands of the Committee on Interior and Insular Affairs, House of Representatives, ninety-ninth Congress, second session, June 5, July 31, September 18, 1986.
United States.Congress.House.Committee on Interior and Insular Affairs.Subcommittee on Public Lands.
Washington : U.S.G.P.O.,
1987.
Wilderness areas