@misc{indiciae97ffa91227c6,
  title = {Geologic map of the Hail quadrangle, McCreary and Pulaski Counties, Kentucky},
  author = {J. Hiram Smith and Joel B. Pomerene and Russell G. Ping},
  year = {1973},
  doi = {10.3133/gq1058},
  url = {https://pubs.usgs.gov/publication/gq1058},
  note = {Source identifier: gq1058}
}