TY  - RPRT
TI  - Drilling and geophysical logs of the tophole at an oil-and-gas well site, Central Venango County, Pennsylvania
AU  - John H. Williams
AU  - Philip H. Bird
AU  - Randall W. Conger
AU  - J. Alton Anderson
PY  - 2014
DO  - 10.3133/ofr20141194
UR  - https://pubs.usgs.gov/publication/ofr20141194
ID  - ofr20141194
ER  -