TY  - RPRT
TI  - Geology of the Bedford shale and Berea sandstone in the Appalachian basin
AU  - J. F. Pepper
AU  - Wallace De Witt
AU  - D. F. Demarest
PY  - 1954
DO  - 10.3133/pp259
UR  - https://pubs.usgs.gov/publication/pp259
ID  - pp259
ER  -