Author
Geological Survey (U.S.)
9
Oriel, Steven S.
4
Albee, Howard F. 1915-2005
3
Geological Survey (U.S.),
3
Schultz, Alfred Reginald, 1876-
3
Dover, James H.
2
M'Gonigle, John W.
2
Oriel, Steven S.,
2
Rubey, William Walden, 1898-1974
2
Schroeder, Marvin L.
2
Tracey, Joshua I., Jr., 1915-2004,
2
Cullins, Henry L.
1
Gibbons, Anthony B.
1
Girty, George Herbert, 1869-1939
1
Jobin, Daniel A. 1922-1998
1
Lund, Karen
1
Nickles, John M. 1859-1945
1
Rioux, Robert L.
1
Rubey, William Walden, 1898-1974,
1
Tracey, Joshua I., Jr., 1915-2004
1
Weaver, Jean M., 1969-
1