Sago Mine disaster and an overview of mine safety : hearing before a Subcommittee of the Committee on Appropriations, United States Senate, One Hundred Ninth Congress, second session, special hearing January 23, 2006, Washington, DC. [electronic resource]
Imprint
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2006.
