@misc{indiciae17657e46276f,
  title = {Muscovite in the Spruce Pine district, North Carolina},
  author = {T. L. Kesler and J. C. Olson},
  year = {1942},
  doi = {10.3133/b936a},
  url = {https://pubs.usgs.gov/publication/b936A},
  note = {Source identifier: b936A}
}