@misc{indiciaed0cef35cf80e,
  title = {Thorium deposits of the United States — Energy resources for the future?},
  author = {Bradley S. Van Gosen and Virginia S. Gillerman and Theodore J. Armbrustmacher},
  year = {2009},
  doi = {10.3133/cir1336},
  url = {https://pubs.usgs.gov/publication/cir1336},
  note = {Source identifier: cir1336}
}