@misc{indiciae8813c4766e79,
  title = {Mineral resource potential map of the Little Frog Roadless Area, Polk County, Tennessee},
  author = {E. R. Force and Gertrude C. Gazdik},
  year = {1983},
  doi = {10.3133/mf1338c},
  url = {https://pubs.usgs.gov/publication/mf1338C},
  note = {Source identifier: mf1338C}
}