@misc{indiciaeb3fa930c35f7,
  title = {Geologic map of the Sanders quadrangle, north-central Kentucky},
  author = {W. C. Swadley},
  year = {1973},
  doi = {10.3133/gq1095},
  url = {https://pubs.usgs.gov/publication/gq1095},
  note = {Source identifier: gq1095}
}