@misc{indiciaeb918b804873d,
  title = {Geologic map of the Ready quadrangle, western Kentucky},
  author = {Benjamin Gildersleeve},
  year = {1975},
  doi = {10.3133/gq1263},
  url = {https://pubs.usgs.gov/publication/gq1263},
  note = {Source identifier: gq1263}
}