United States. Congress. Senate. Committee on Homeland Security and Governmental Affairs.
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2010.
2010
United States. Congress. Senate. Committee on Energy and Natural Resources.
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2012.
2012
United States. Congress. House. Committee on Natural Resources. Subcommittee on Energy and Mineral Resources.
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2009-
2009