@misc{indiciae6bc2b82ca19b,
  title = {Geologic map of the Beattyville Quadrangle, Lee and Owsley counties, Kentucky},
  author = {Gordon Whitney Weir and R. E. Eggleton},
  year = {1977},
  doi = {10.3133/ofr77579},
  url = {https://pubs.usgs.gov/publication/ofr77579},
  note = {Source identifier: ofr77579}
}