@misc{indiciae76cb1fc428b8,
  title = {Geology of the Montpelier quadrangle, Kentucky},
  author = {Richard Q. Lewis and Robert E. Thaden},
  year = {1964},
  doi = {10.3133/gq337},
  url = {https://pubs.usgs.gov/publication/gq337},
  note = {Source identifier: gq337}
}