TY  - RPRT
TI  - Preliminary stratigraphic cross section of the Devonian in the eastern part of the Appalachian Basin showing radioactive shale zones
AU  - Mareta N. West
PY  - 1977
DO  - 10.3133/ofr77842
UR  - https://pubs.usgs.gov/publication/ofr77842
ID  - ofr77842
ER  -