@misc{indiciae6c358cb774e4,
  title = {Geology of the Ducktown, Isabella, and Persimmon Creek quadrangles, Tennessee and North Carolina},
  author = {Robert Mann Hernon},
  year = {1968},
  doi = {10.3133/ofr68128},
  url = {https://pubs.usgs.gov/publication/ofr68128},
  note = {Source identifier: ofr68128}
}