@misc{indiciaed558140b6750,
  title = {Geologic map of the Brooks quadrangle, Bullitt and Jefferson Counties, Kentucky},
  author = {Roy Clark Kepferle},
  year = {1972},
  doi = {10.3133/gq961},
  url = {https://pubs.usgs.gov/publication/gq961},
  note = {Source identifier: gq961}
}