@misc{indiciaeae2d47273bb3,
  title = {Geologic map of the Centerville quadrangle, central Kentucky},
  author = {Stephen P. Kanizay and Earle Rupert Cressman},
  year = {1967},
  doi = {10.3133/gq653},
  url = {https://pubs.usgs.gov/publication/gq653},
  note = {Source identifier: gq653}
}