@misc{indiciaee097b44e252f,
  title = {Drilling and geophysical logs of the tophole at an oil-and-gas well site, Central Venango County, Pennsylvania},
  author = {John H. Williams and Philip H. Bird and Randall W. Conger and J. Alton Anderson},
  year = {2014},
  doi = {10.3133/ofr20141194},
  url = {https://pubs.usgs.gov/publication/ofr20141194},
  note = {Source identifier: ofr20141194}
}