@misc{indiciaeac78af3dd01a,
  title = {Geologic map of the Sitka quadrangle, Johnson and Lawrence Counties, Kentucky},
  author = {Philip Thayer Hayes},
  year = {1977},
  doi = {10.3133/gq1398},
  url = {https://pubs.usgs.gov/publication/gq1398},
  note = {Source identifier: gq1398}
}