@misc{indiciae7d7fe5d18735,
  title = {Rare Earth Element Mines, Deposits, and Occurrences},
  author = {Greta J. Orris and Richard I. Grauch},
  year = {2002},
  doi = {10.3133/ofr02189},
  url = {https://pubs.usgs.gov/publication/ofr02189},
  note = {Source identifier: ofr02189}
}