Author
Geological Survey (U.S.)
14
Sims, P. K. 1918-2011
6
Missouri. Division of Geology and Land Survey
3
Houston, Robert S. 1923-
2
Kisvarsanyi, Eva B.
2
Arkansas Geological Survey
1
Bryant, Bruce, 1930-
1
Cordell, Lindrith
1
Dart, R. L.
1
Graff, P. J.
1
Kansas Geological Survey
1
Karl, John H.
1
Karlstrom, Karl E.
1
McCafferty, Anne
1
Ostrom, Meredith E. 1930-
1
Peterman, Zell E.
1
Zietz, Isidore, 1919-
1