H.R. 624, H.R. 3640, H.R. 4109, H.R. 4334, H.R. 4484, H.R. 5319, H.R. 5958, and H.R. 5987 : legislative hearing before the Subcommittee on National Parks, Forests, and Public Lands of the Committee on Natural Resources, U.S. House of Representatives, One Hundred Twelfth Congress, second session, Thursday, June 28, 2012.
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Washington : U.S. Government Printing Office, 2013.
Washington, DC : For sale by the Superintendent of Documents, U.S. Government Printing Office