@misc{indiciae3633a2ef7f1c,
  title = {Geologic map of the Poole quadrangle, western Kentucky},
  author = {G. M. Fairer},
  year = {1973},
  doi = {10.3133/gq1088},
  url = {https://pubs.usgs.gov/publication/gq1088},
  note = {Source identifier: gq1088}
}