Author
Geological Survey (U.S.),
2
Cadigan, Robert Allen, 1918-
1
Fleischer, Michael,
1
Geological Survey (U.S.)
1
Granger, H. C. 1925-
1
Pettijohn, F. J. 1904-1999
1
Pettijohn, F. J. 1904-1999,
1
U.S. Atomic Energy Commission,
1
U.S. Atomic Energy Commission. Division of Raw Materials
1
Waters, Aaron C. 1905-1991,
1