@misc{indiciae916a4c291d8a,
  title = {Geologic map of the Bryantsville quadrangle, central Kentucky},
  author = {Don E. Wolcott and Earle Rupert Cressman},
  year = {1971},
  doi = {10.3133/gq945},
  url = {https://pubs.usgs.gov/publication/gq945},
  note = {Source identifier: gq945}
}