@misc{indiciaed002078d1e09,
  title = {Oil and gas data from the upper Paleozoic rocks in the Appalachian basin},
  author = {Wallace De Witt},
  year = {1974},
  doi = {10.3133/i917a},
  url = {https://pubs.usgs.gov/publication/i917A},
  note = {Source identifier: i917A}
}