TY  - RPRT
TI  - Preliminary stratigraphic cross section showing radioactive zones in the Devonian black shales in the southern part of the Appalachian Basin
AU  - Roy Clark Kepferle
AU  - Edward Norman Wilson
AU  - Frank Robert Ettensohn
PY  - 1978
DO  - 10.3133/oc85
UR  - https://pubs.usgs.gov/publication/oc85
ID  - oc85
ER  -