@misc{indiciae8d236c3b22bd,
  title = {Geology of the Middlesboro South quadrangle, Tennessee-Kentucky-Virginia},
  author = {Kenneth John Englund},
  year = {1964},
  doi = {10.3133/gq301},
  url = {https://pubs.usgs.gov/publication/gq301},
  note = {Source identifier: gq301}
}