@misc{indiciae26cdd94a4a29,
  title = {Geology of the Fountain Run quadrangle, Kentucky-Tennessee},
  author = {Warren Bell Hamilton},
  year = {1963},
  doi = {10.3133/gq254},
  url = {https://pubs.usgs.gov/publication/gq254},
  note = {Source identifier: gq254}
}