@misc{indiciaeccd3d5e92c06,
  title = {Geologic map of Cowcreek quadrangle, Owsley and Breathitt Counties, Kentucky},
  author = {William F. Outerbridge},
  year = {1978},
  doi = {10.3133/gq1448},
  url = {https://pubs.usgs.gov/publication/gq1448},
  note = {Source identifier: gq1448}
}