@misc{indiciae5a3ad3dd9b89,
  title = {Geologic map of the Fisherville quadrangle, north-central Kentucky},
  author = {Roy Clark Kepferle},
  year = {1976},
  doi = {10.3133/gq1321},
  url = {https://pubs.usgs.gov/publication/gq1321},
  note = {Source identifier: gq1321}
}