@misc{indiciaeda80ea357e86,
  title = {Geologic map of the Maceo quadrangle, Daviess and Hancock Counties, Kentucky},
  author = {Ronald H. Calvert},
  year = {1966},
  doi = {10.3133/gq570},
  url = {https://pubs.usgs.gov/publication/gq570},
  note = {Source identifier: gq570}
}