@misc{indiciaecbf198daebdb,
  title = {Geologic map of the North Pleasureville quadrangle, Shelby and Henry Counties, Kentucky},
  author = {Warren Lee Peterson},
  year = {1977},
  doi = {10.3133/gq1346},
  url = {https://pubs.usgs.gov/publication/gq1346},
  note = {Source identifier: gq1346}
}