@misc{indiciae79d6053bb630,
  title = {Application of the production-grade method to the estimation of U.S. uranium resources},
  author = {Simon M. Cargill},
  year = {1980},
  doi = {10.3133/ofr801138},
  url = {https://pubs.usgs.gov/publication/ofr801138},
  note = {Source identifier: ofr801138}
}