@misc{indiciaefcc212be67eb,
  title = {Geologic map of the Pitts Point quadrangle, Bullitt and Hardin Counties, Kentucky},
  author = {Roy Clark Kepferle},
  year = {1977},
  doi = {10.3133/gq1376},
  url = {https://pubs.usgs.gov/publication/gq1376},
  note = {Source identifier: gq1376}
}