Author
Geological Survey (U.S.),
18
Shacklette, Hansford T.,
5
Chaffee, Maurice A.
3
Erickson, Ralph Leroy, 1923-
3
Kennedy, Vance C. 1923-
3
Shacklette, Hansford T.
3
Canney, Frank C. 1920-
2
Cannon, Helen L., 1911-1996
2
Cannon, Helen L., 1911-1996,
2
Curtin, Gary C., 1935-
2
Geological Survey (U.S.)
2
Hawkes, H. E. 1912-1996
2
Hawkes, H. E. 1912-1996,
2
Huff, Lyman C., 1914-
2
Miesch, A. T.
2
Bastron, Harry
1
Bastron, Harry,
1
Chaffee, Maurice A.,
1
Erickson, R. L.
1
Erikson, Jane Ebner
1
Erikson, Jane Ebner,
1
Geological Survey of Nigeria,
1
Harbaugh, John Warvelle, 1926-2019
1
Harbaugh, John Warvelle, 1926-2019,
1
Hobbs, Warren S.
1
Markward, Ellen L., 1909-1981
1
Nolan, Thomas B. 1901-1992
1
Nolan, Thomas B. 1901-1992,
1
Starkey, Harry C.
1
United States. Mutual Security Agency,
1