Additions to the flora of the Spotted Ridge Formation in central Oregon

Mamay, Sergius H., 1920-
Washington : U.S.Govt.Print.Off., 1956.

Aerial photographs in geologic interpretation and mapping.

Ray, Richard G. (Richard Godfrey), 1920-
Washington : U.S. Govt. Print. Off., 1960.

Atlantic continental shelf and slope of the United States; petrology of the sand fraction of sedimen

Milliman, John D.
Washington : U. S. Govt. Print. Offic., 1972.

Geology and mineral resources of the Congonhas district, Minas Gerais, Brazil. A study of pre-Cambri

Guild, Philip White, 1915-
Washington : U.S. Govt. Print. Off., 1957.

Middle Ordovician rocks of the Tellico-Sevier Belt, Eastern Tennessee.

Neuman, Robert B., 1920-
Washington : U.S.Govt.Print.Off., 1955.

Upper Cretaceous Foraminifera of the gulf coastal region of the United States and adjacent areas

Cushman, Joseph A. (Joseph Augustine), 1881-1949.
Washington : U. S. Govt. Print. Off., 1946 ; Alexandria, Virginia : McLean Paleontological Laboratory, 1965.