TY  - RPRT
TI  - Clarification and changes in Permian stratigraphic nomenclature in Kansas
AU  - R.S. Sawin
AU  - E. K. Franseen
AU  - R.R. West
AU  - Greg A. Ludvigson
AU  - W.L. Watney
PY  - 2008
UR  - https://pubs.usgs.gov/publication/70033699
ID  - 70033699
ER  -