@misc{indiciae77d0db85aa59,
  title = {Geologic map of the Austerlitz quadrangle, Clark and Bourbon Counties, Kentucky},
  author = {William F. Outerbridge},
  year = {1975},
  doi = {10.3133/gq1245},
  url = {https://pubs.usgs.gov/publication/gq1245},
  note = {Source identifier: gq1245}
}