@misc{indiciae1f018f19e724,
  title = {Chattanooga shale and related rocks of central Tennessee and nearby areas},
  author = {Louis C. Conant and Vernon Emanuel Swanson},
  year = {1961},
  doi = {10.3133/pp357},
  url = {https://pubs.usgs.gov/publication/pp357},
  note = {Source identifier: pp357}
}