@misc{indiciae890db4dab5a9,
  title = {Geology of the Maretburg quadrangle, Kentucky},
  author = {Seymour O. Schlanger},
  year = {1965},
  doi = {10.3133/gq338},
  url = {https://pubs.usgs.gov/publication/gq338},
  note = {Source identifier: gq338}
}