@misc{indiciaefc7288713c05,
  title = {Geologic map of the McDaniels quadrangle, Grayson and Breckinridge Counties, Kentucky},
  author = {William D. Johnson},
  year = {1978},
  doi = {10.3133/gq1473},
  url = {https://pubs.usgs.gov/publication/gq1473},
  note = {Source identifier: gq1473}
}