@misc{indiciaecbf49bcb3c3b,
  title = {Geologic map of the White Oak quadrangle, Magoffin and Morgan Counties, Kentucky},
  author = {Edward G. Sable},
  year = {1978},
  doi = {10.3133/gq1480},
  url = {https://pubs.usgs.gov/publication/gq1480},
  note = {Source identifier: gq1480}
}