@misc{indiciaed50623ea0289,
  title = {Mica deposits of the southeastern Piedmont, Part 9, Thomaston-Barnesville district, Georgia; Part 10, Outlying deposits in Georgia},
  author = {E. W. Heinrich and M. R. Klepper and R. H. Jahns},
  year = {1953},
  doi = {10.3133/pp248f},
  url = {https://pubs.usgs.gov/publication/pp248F},
  note = {Source identifier: pp248F}
}