@misc{indiciae3cc1e598324f,
  title = {Mica deposits of the southeastern Piedmont, Part 11, Alabama district},
  author = {E. W. Heinrich and J. C. Olson},
  year = {1953},
  doi = {10.3133/pp248g},
  url = {https://pubs.usgs.gov/publication/pp248G},
  note = {Source identifier: pp248G}
}