BLM authorization : hearing before the Subcommittee on National Parks, Forests, and Public Lands of the Committee on Natural Resources, House of Representatives, One Hundred Third Congress, first session, on H.R. 1603, to authorize appropriations for programs, functions, and activities of the Bureau of Land Management for fiscal years 1994 through 1997, to improve the management of the public lands, and for other purposes, hearing held in Washington, DC, May 25, 1993.