H.R. 2099, H.R. 3917 and H.R. 4874 : legislative hearing before the Subcommittee on National Parks, Recreation, and Public Lands of the Committee on Resources, U.S. House of Representatives, One Hundred Seventh Congress, second session, July 9, 2002.
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., [Congressional Sales Office], 2003.