@misc{indiciae73441dddaf77,
  title = {Geologic map of the Paintsville quadrangle, Johnson and Floyd Counties, Kentucky},
  author = {William F. Outerbridge},
  year = {1966},
  doi = {10.3133/gq495},
  url = {https://pubs.usgs.gov/publication/gq495},
  note = {Source identifier: gq495}
}