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., 2007.
2007
United States. Congress. House. Committee on Resources.
Washington : U.S. G.P.O. : [U.S. G.P.O., Supt. of Docs., Congressional Sales Office, distributor], 1999 [i.e. 2000]
2000