@misc{indiciae27684cb166af,
  title = {Geologic map of the Homer quadrangle, Logan County, Kentucky},
  author = {Benjamin Gildersleeve},
  year = {1966},
  doi = {10.3133/gq549},
  url = {https://pubs.usgs.gov/publication/gq549},
  note = {Source identifier: gq549}
}