@misc{indiciaec0fc83050fc3,
  title = {Geologic setting of the Mountain Pass rare earth deposits, San Bernardino County, California},
  author = {Jerry Chipman Olson},
  year = {1952},
  doi = {10.3133/ofr52110},
  url = {https://pubs.usgs.gov/publication/ofr52110},
  note = {Source identifier: ofr52110}
}