@misc{indiciae8aa7df4a7d7e,
  title = {Oil and gas data from Devonian and Silurian rocks in the Appalachian Basin},
  author = {W. J. Perry and L.G. Wallace},
  year = {1975},
  doi = {10.3133/i917b},
  url = {https://pubs.usgs.gov/publication/i917B},
  note = {Source identifier: i917B}
}