@misc{indiciae17cccd71934e,
  title = {Oil and gas data from the lower Ordovician and Cambrian rocks of the Appalachian Basin},
  author = {Larry D. Harris},
  year = {1975},
  doi = {10.3133/i917d},
  url = {https://pubs.usgs.gov/publication/i917D},
  note = {Source identifier: i917D}
}