@misc{indiciae8ba06cf849c9,
  title = {Geologic map of the Glencoe quadrangle, north-central Kentucky},
  author = {W. C. Swadley},
  year = {1974},
  doi = {10.3133/gq1154},
  url = {https://pubs.usgs.gov/publication/gq1154},
  note = {Source identifier: gq1154}
}