@misc{indiciaefe1deb530015,
  title = {Geologic map of the Creekville Quadrangle, Clay and Leslie counties, Kentucky},
  author = {Bruce Bryant},
  year = {1977},
  doi = {10.3133/ofr77877},
  url = {https://pubs.usgs.gov/publication/ofr77877},
  note = {Source identifier: ofr77877}
}