The state of mine safety and health : hearing of the Committee on Health, Education, Labor, and Pensions, United States Senate, One Hundred Ninth Congress, second session, on examining the state of mine safety and health, March 2, 2006.
Imprint
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2006.
