Coal conferences : symposiums before the Committee on Energy and Natural Resources, United States Senate, One Hundred Ninth Congress, first session on the Future of Coal Confernece [sic], March 10, 2005, April 21, 2005.
Imprint
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2005.