APA

United States, . (2008). Utah mine disaster and preventing future tragedies: hearing before a subcommittee of the Committee on Appropriations, United States Senate, One Hundred Tenth Congress, first session, special hearing, September 5, 2007, Washington, DC. Washington: U.S. G.P.O.

Chicago

United States, . 2008. Utah mine disaster and preventing future tragedies: hearing before a subcommittee of the Committee on Appropriations, United States Senate, One Hundred Tenth Congress, first session, special hearing, September 5, 2007, Washington, DC. Washington: U.S. G.P.O.

Harvard

United States, . (2008). Utah mine disaster and preventing future tragedies: hearing before a subcommittee of the Committee on Appropriations, United States Senate, One Hundred Tenth Congress, first session, special hearing, September 5, 2007, Washington, DC. Washington: U.S. G.P.O.

MLA

United States, . Utah mine disaster and preventing future tragedies: hearing before a subcommittee of the Committee on Appropriations, United States Senate, One Hundred Tenth Congress, first session, special hearing, September 5, 2007, Washington, DC. Washington: U.S. G.P.O. 2008.