@misc{indiciae1638fff6e176,
  title = {Reconnaissance for radioactivity in the metal-mining districts of the San Juan Mountains, Colorado},
  author = {Charles Thomas Pierson and W.F. Weeks and F. J. Kleinhampl},
  year = {1958},
  doi = {10.3133/b1046o},
  url = {https://pubs.usgs.gov/publication/b1046O},
  note = {Source identifier: b1046O}
}