Ruth C. Clusen, and Roger A. Markle nominations : hearing before the Committee on Energy and Natural Resources, United States Senate, Ninety-fifth Congress, second session ... August 18, 1978.
United States.Congress.Senate.Committee on Energy and Natural Resources.
Washington : U.S. Govt. Print. Off.,
1978.
"Publication no. 95-143."
Clusen, Ruth C., 1922-
Markle, Roger A., 1933-
United States. Department of Energy
United States. Bureau of Mines