@misc{indiciae9bf6e0f55f4f,
  title = {Geologic map of the Waddy quadrangle, central Kentucky},
  author = {Earle Rupert Cressman},
  year = {1975},
  doi = {10.3133/gq1255},
  url = {https://pubs.usgs.gov/publication/gq1255},
  note = {Source identifier: gq1255}
}