@misc{indiciaecfc5d57ab61d,
  title = {Geologic map of the Clintonville quadrangle, central Kentucky},
  author = {William Charles MacQuown},
  year = {1968},
  doi = {10.3133/gq717},
  url = {https://pubs.usgs.gov/publication/gq717},
  note = {Source identifier: gq717}
}