Arnett, Burford, Carruthers, Coldiron, and Johnson nominations [microform] : hearing before the Committee on Energy and Natural Resources, United States Senate, Ninety-seventh Congress, first session, on the nominations of G. Ray Arnett to be assistant secretary, fish, wildlife, and parks, Department of the Interior, Robert F. Burford to be director, Bureau of Land Management, Department of the Interior, Garrey E. Carruthers to be assistant secretary, land and water resources, Department of the Interior, William H. Coldiron to be solicitor, Department of the Interior, and R. Tenney Johnson to be general counsel, Department of Energy, April 8, 1981