@misc{indiciaee878ccafa5c1,
  title = {Geologic map of the Independence quadrangle, Kenton and Boone Counties, Kentucky},
  author = {Stanley J. Luft},
  year = {1969},
  doi = {10.3133/gq785},
  url = {https://pubs.usgs.gov/publication/gq785},
  note = {Source identifier: gq785}
}