@misc{indiciae905a4cd5bb23,
  title = {Geologic map of part of the Joppa quadrangle, McCracken County, Kentucky},
  author = {Warren Irvin Finch},
  year = {1967},
  doi = {10.3133/gq652},
  url = {https://pubs.usgs.gov/publication/gq652},
  note = {Source identifier: gq652}
}