@misc{indiciae5fbd2a981559,
  title = {Results of reconnaissance for radioactive minerals in parts of the Alma district, Park County, Colorado},
  author = {Charles Thomas Pierson and Quentin Dreyer Singewald},
  year = {1953},
  doi = {10.3133/cir294},
  url = {https://pubs.usgs.gov/publication/cir294},
  note = {Source identifier: cir294}
}