@misc{indiciaeb2eebe390751,
  title = {Geology of the Brushart quadrangle, Kentucky},
  author = {Charles Storrow Denny},
  year = {1964},
  doi = {10.3133/gq324},
  url = {https://pubs.usgs.gov/publication/gq324},
  note = {Source identifier: gq324}
}