@misc{indiciaeebd2d5553747,
  title = {Mineral resources of the Grandfather Mountain window and vicinity, North Carolina},
  author = {Bruce Bryant and John Calvin Reed},
  year = {1966},
  doi = {10.3133/cir521},
  url = {https://pubs.usgs.gov/publication/cir521},
  note = {Source identifier: cir521}
}