@misc{indiciaead9b4b444438,
  title = {Geologic map of the Crestwood quadrangle, north-central Kentucky},
  author = {Roy Clark Kepferle},
  year = {1976},
  doi = {10.3133/gq1342},
  url = {https://pubs.usgs.gov/publication/gq1342},
  note = {Source identifier: gq1342}
}