@misc{indiciaee9fe6e9b0e7b,
  title = {Oil and gas resources of the Cincinnati arch, Ohio, Indiana, Kentucky, and Tennessee},
  author = {R. T. Ryder},
  year = {1987},
  doi = {10.3133/ofr87450y},
  url = {https://pubs.usgs.gov/publication/ofr87450Y},
  note = {Source identifier: ofr87450Y}
}