@misc{indiciae51d8f1f35342,
  title = {Geologic map of the Campton quadrangle, east-central Kentucky},
  author = {T. Dennis Coskren and Harry P. Hoge},
  year = {1978},
  doi = {10.3133/gq1502},
  url = {https://pubs.usgs.gov/publication/gq1502},
  note = {Source identifier: gq1502}
}