United States. Congress. House. Committee on Natural Resources. Subcommittee on National Parks, Forests, and Public Lands (2007-2013). (2009). H.R. 644, Grand Canyon Watersheds Protection Act of 2009: 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 Eleventh Congress, first session, Tuesday, July 21, 2009. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Natural Resources. Subcommittee on National Parks, Forests, and Public Lands (2007-2013). H.R. 644, Grand Canyon Watersheds Protection Act of 2009: 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 Eleventh Congress, First Session, Tuesday, July 21, 2009. Washington: U.S. G.P.O., 2009.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Natural Resources. Subcommittee on National Parks, Forests, and Public Lands (2007-2013). H.R. 644, Grand Canyon Watersheds Protection Act of 2009: 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 Eleventh Congress, First Session, Tuesday, July 21, 2009. U.S. G.P.O., 2009.