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  - J.B. Roen
AU  - Wallace De Witt
PY  - 1977
DO  - 10.3133/ofr77839
UR  - https://pubs.usgs.gov/publication/ofr77839
ID  - ofr77839
ER  -