Changes in stratigraphic nomenclature by the U.S. Geological Survey, 1973 /
by George V. Cohee and Wilna R. [i.e. B.] Wright.

APA Citation

Cohee, G. Vincent., Wright, W. B. (Wilna B.). (1975). Changes in stratigraphic nomenclature by the U.S. Geological Survey, 1973. Washington: United States Government Printing Office.

MLA Citation

Cohee, George Vincent, 1907-, and W. B. (Wilna B.) Wright. Changes In Stratigraphic Nomenclature by the U.S. Geological Survey, 1973. Washington: United States Government Printing Office, 1975.