Publication Found
- Bulletin 256 (2)--A Review of the Stratigraphy of the Ogallala Formation and Revision of Neogene ("Tertiary") Nomenclature in Kansas
- by Greg A. Ludvigson , Robert S. Sawin , Evan K. Franseen , W. Lynn Watney , West, R. R. , Jon J. Smith
- p., 2009, no charge, Online only.
- Full Version available online