Critical minerals and materials legislation : hearing before the Subcommittee on Energy of the Committee on Energy and Natural Resources, United States Senate, One Hundred Twelfth Congress, first session, on S. 383, S. 421, S. 1133 [i.e. S. 1113], June 9, 2011.
Imprint
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2011.
