@misc{indiciae2049daff7bdb,
  title = {Geologic map of the Oak Grove quadrangle, Kentucky-Tennessee},
  author = {Harry Klemic},
  year = {1966},
  doi = {10.3133/gq565},
  url = {https://pubs.usgs.gov/publication/gq565},
  note = {Source identifier: gq565}
}