@misc{indiciae44aee722d53e,
  title = {Geologic map of part of the Manchester Islands quadrangle, Lewis County, Kentucky},
  author = {John H. Peck and Kenneth Lee Pierce},
  year = {1966},
  doi = {10.3133/gq581},
  url = {https://pubs.usgs.gov/publication/gq581},
  note = {Source identifier: gq581}
}