@misc{indiciae8945b5cababc,
  title = {Geologic map of the Levee quadrangle, east-central Kentucky},
  author = {Robert C. McDowell},
  year = {1978},
  doi = {10.3133/gq1478},
  url = {https://pubs.usgs.gov/publication/gq1478},
  note = {Source identifier: gq1478}
}