@misc{indiciae387e675ff7ca,
  title = {Geologic map of the Valley View quadrangle, central Kentucky},
  author = {Robert C. Greene},
  year = {1966},
  doi = {10.3133/gq470},
  url = {https://pubs.usgs.gov/publication/gq470},
  note = {Source identifier: gq470}
}