@misc{indiciae39f17a82a899,
  title = {Geologic map of the Vest Quadrangle, eastern Kentucky},
  author = {Walter Danilchik and Henry A. Waldrop},
  year = {1978},
  doi = {10.3133/ofr78375},
  url = {https://pubs.usgs.gov/publication/ofr78375},
  note = {Source identifier: ofr78375}
}