@misc{indiciae3e9f662ece04,
  title = {Oil and gas data from Paleozoic rocks in the Appalachian Basin; maps for assessing hydrocarbon potential and thermal maturity (conodont color alteration isograds and overburden isopachs)},
  author = {A. G. Harris and Larry D. Harris and J. B. Epstein},
  year = {1978},
  doi = {10.3133/i917e},
  url = {https://pubs.usgs.gov/publication/i917E},
  note = {Source identifier: i917E}
}