@misc{indiciae167538a36559,
  title = {Geologic map of the Cornishville quadrangle, Mercer County, Kentucky},
  author = {Earle Rupert Cressman},
  year = {1973},
  doi = {10.3133/gq1135},
  url = {https://pubs.usgs.gov/publication/gq1135},
  note = {Source identifier: gq1135}
}