@misc{indiciaea77bd90e6b1a,
  title = {Geologic Map Of The Ellendale Quadrangle, Tennessee},
  author = {W. S. Parks},
  year = {1977},
  doi = {10.3133/ofr77752},
  url = {https://pubs.usgs.gov/publication/ofr77752},
  note = {Source identifier: ofr77752}
}