@misc{indiciae211a297b31d7,
  title = {Pegmatites of the Crystal Mountain district, Larimer County, Colorado},
  author = {William R. Thurston},
  year = {1952},
  doi = {10.3133/tei139},
  url = {https://pubs.usgs.gov/publication/tei139},
  note = {Source identifier: tei139}
}