Author
Geological Survey (U.S.)
45
Balsley, J. R.
20
Blanchett, Jean
12
Meuschke, J. L.
12
Michigan. Geological Survey Division
11
High-Sense Geophysics Limited
7
Kruger, C. L.
5
Smith, C. W. 1920-
4
Philbin, P. W.
3
Vargo, Joseph L.
3
Wier, K. L. 1914-
3
Geological Survey (U.S.),
2
James, H. L. 1912-2000
2
Petrafeso, F. A.
2
Case, James E., 1933-
1
Gair, Jacob Eugene, 1922-
1
Good, Stanley E., 1919-1949
1
Good, Stanley E., 1919-1949,
1
James, H. L. 1912-2000,
1
King, Elizabeth R.
1
Kirby, John R.
1
McCaslin, William E.
1
Pettijohn, F. J. 1904-1999
1
Pettijohn, F. J. 1904-1999,
1
Pratt, William P.
1
Prinz, William C., 1928-
1
Zietz, Isidore, 1919-
1