West, Mares, Sousa, and Trivelpiece nominations : hearing before the Committee on Energy and Natural Resources, United States Senate, Ninety-seventh Congress, first session, on the nominations of J. Robin West to be assistant secretary of interior for policy, budget, and administration, Department of the Interior, Jan W. Mares to be assistant secretary of energy for fossil energy, Department of Energy, Anthony G. Sousa to be a member of the Federal Energy Regulatory Commission, Department of Energy, and Alvin W. Trivelpiece to be director, Office of Energy Research, Department of Energy, July 24, 1981.