TY  - RPRT
TI  - Geology of the Bedford shale and Berea sandstone in the Appalachian Basin
AU  - J. F. Pepper
AU  - Jr. De Witt
AU  - D. F. Demarest
PY  - 1954
DO  - 10.1126/science.119.3094.512.b
UR  - https://pubs.usgs.gov/publication/70010724
ID  - 70010724
ER  -