@misc{indiciae5814f98510a1,
  title = {Geologic map of the Curdsville quadrangle, western Kentucky},
  author = {G. M. Fairer and Ronald Lee Norris},
  year = {1972},
  doi = {10.3133/gq1039},
  url = {https://pubs.usgs.gov/publication/gq1039},
  note = {Source identifier: gq1039}
}