@misc{indiciae16827ee347f9,
  title = {Thorium and rare earths in the United States},
  author = {Jerry Chipman Olson and J.W. Adams},
  year = {1961},
  doi = {10.3133/ofr61112},
  url = {https://pubs.usgs.gov/publication/ofr61112},
  note = {Source identifier: ofr61112}
}