Changes in stratigraphic nomenclature by the U.S. Geological Survey /
Changes in stratigraphic nomenclature by the United States Geological Survey
by George Vincent Cohee, Robert Glenn Bates and W. B. Wright
- Washington, D.C. : U.S. Dept. of the Interior, Geological Survey, 1979
- Various pagings ; 23 cm.
- Annual
- 1975
- Contributions to stratigraphy Geological Survey bulletin. .