@misc{indiciaec3cd80e2d6e3,
  title = {Geologic map of the Paducah West and part of the Metropolis quadrangles, Kentucky-Illinois},
  author = {Warren Irvin Finch},
  year = {1966},
  doi = {10.3133/gq557},
  url = {https://pubs.usgs.gov/publication/gq557},
  note = {Source identifier: gq557}
}