TY  - RPRT
TI  - Preliminary stratigraphic cross section showing radioactive zones in the Devonian Black Shales in southeastern Ohio and west-central West Virginia
AU  - Laure G. Wallace
AU  - John B. Roen
AU  - Wallace De Witt
PY  - 1978
DO  - 10.3133/oc83
UR  - https://pubs.usgs.gov/publication/oc83
ID  - oc83
ER  -