@misc{indiciae5c834ac4ed4e,
  title = {Geologic map of the Waverly quadrangle, Union and Henderson Counties, Kentucky},
  author = {G. M. Fairer},
  year = {1975},
  doi = {10.3133/gq1220},
  url = {https://pubs.usgs.gov/publication/gq1220},
  note = {Source identifier: gq1220}
}