The correlation of the Vicksburg group - Cooke, Charles Wythe, 1887-; Cushman, Joseph A. (Joseph Augustine), 1881-1949. (Washington, Govt. Print. Off., 1923)
At head of title: Department of the interior.
Plates printed on both sides of leaf.
Keywords: Geology, Stratigraphic -- Tertiary; Foraminifera, Fossil