Author
Geological Survey (U.S.)
9
Fox, J. E. 1943-
4
Higley, Debra K.
4
Crysdale, Bonnie L.
2
Read, C. B.
2
Collins, Jack B.
1
Cressman, Earle Rupert, 1923-
1
Lane, Diane E.
1
Maher, John C. 1914-
1
McKee, Edwin D. 1906-1984
1
Moore, Raymond C. 1892-1974
1
Sheldon, Richard Porter, 1923-
1
Wilber, Patricia L.
1