@misc{indiciae1c90f3e54fac,
  title = {Geology of the Cecilia quadrangle, Kentucky},
  author = {Roy Clark Kepferle},
  year = {1963},
  doi = {10.3133/gq263},
  url = {https://pubs.usgs.gov/publication/gq263},
  note = {Source identifier: gq263}
}