@misc{indiciaee5b8b13a6495,
  title = {Geologic map of the Danville quadrangle, Mercer and Boyle Counties, Kentucky},
  author = {Earle Rupert Cressman},
  year = {1972},
  doi = {10.3133/gq985},
  url = {https://pubs.usgs.gov/publication/gq985},
  note = {Source identifier: gq985}
}