APA (7th ed.) Citation

United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on National Parks. (2012). National parks bills: Hearing before the Subcommittee on National Parks of the Committee on Energy and Natural Resources, United States Senate, One Hundred Twelfth Congress, second session, on S. 29, S. 1150, S. 1191, S. 1198, S. 1215, S. 1589, S. 1708, S. 2131, S. 2133, H.R. 1141, H.R. 2606, March 7, 2012. U.S. G.P.O..

Chicago Style (17th ed.) Citation

United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on National Parks. National Parks Bills: Hearing Before the Subcommittee on National Parks of the Committee on Energy and Natural Resources, United States Senate, One Hundred Twelfth Congress, Second Session, on S. 29, S. 1150, S. 1191, S. 1198, S. 1215, S. 1589, S. 1708, S. 2131, S. 2133, H.R. 1141, H.R. 2606, March 7, 2012. Washington: U.S. G.P.O., 2012.

MLA (9th ed.) Citation

United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on National Parks. National Parks Bills: Hearing Before the Subcommittee on National Parks of the Committee on Energy and Natural Resources, United States Senate, One Hundred Twelfth Congress, Second Session, on S. 29, S. 1150, S. 1191, S. 1198, S. 1215, S. 1589, S. 1708, S. 2131, S. 2133, H.R. 1141, H.R. 2606, March 7, 2012. U.S. G.P.O., 2012.