@misc{indiciae15f7c92984aa,
  title = {Oil and gas data from the upper and middle Ordovician rocks in the Appalachian Basin},
  author = {R. L. Miller},
  year = {1975},
  doi = {10.3133/i917c},
  url = {https://pubs.usgs.gov/publication/i917C},
  note = {Source identifier: i917C}
}