@misc{indiciae1e3bfbf1f3ed,
  title = {Geologic map of the Blaine quadrangle, Lawrence County, Kentucky},
  author = {C. L. Pillmore and Carol Waite Connor},
  year = {1978},
  doi = {10.3133/gq1507},
  url = {https://pubs.usgs.gov/publication/gq1507},
  note = {Source identifier: gq1507}
}