@misc{indiciaeae3f3b6fe0eb,
  title = {Geologic map of the Cowan quadrangle, northeastern Kentucky},
  author = {Lawrence Vernon Blade},
  year = {1978},
  doi = {10.3133/gq1466},
  url = {https://pubs.usgs.gov/publication/gq1466},
  note = {Source identifier: gq1466}
}