@misc{indiciae9d85a5b7aef5,
  title = {Geologic map of the Hardinsburg quadrangle, Breckinridge County, Kentucky},
  author = {Dewey Harold Amos},
  year = {1975},
  doi = {10.3133/gq1232},
  url = {https://pubs.usgs.gov/publication/gq1232},
  note = {Source identifier: gq1232}
}