@misc{indiciaefd35d21f3ed8,
  title = {Preliminary geologic map of the Owenton quadrangle, Owen and Grant Counties, Kentucky},
  author = {W. C. Swadley},
  year = {1975},
  doi = {10.3133/ofr75118},
  url = {https://pubs.usgs.gov/publication/ofr75118},
  note = {Source identifier: ofr75118}
}