@misc{indiciae8a5a5ddb2248,
  title = {Mica deposits of the southeastern Piedmont, Part 5, Shelby-Hickory district, North Carolina; Part 6, Outlying deposits in North Carolina},
  author = {W. R. Griffitts and J. C. Olson},
  year = {1953},
  doi = {10.3133/pp248d},
  url = {https://pubs.usgs.gov/publication/pp248D},
  note = {Source identifier: pp248D}
}