@misc{indiciae10be8774043a,
  title = {Geologic map of the Glensboro quadrangle, central Kentucky},
  author = {Earle Rupert Cressman},
  year = {1976},
  doi = {10.3133/gq1355},
  url = {https://pubs.usgs.gov/publication/gq1355},
  note = {Source identifier: gq1355}
}