@misc{indiciae32d93b6f09fc,
  title = {Radioactivity reconnaissance of part of north-central Clear Creek County, Colorado},
  author = {John David Wells and Jack Edward Harrison},
  year = {1954},
  doi = {10.3133/cir345},
  url = {https://pubs.usgs.gov/publication/cir345},
  note = {Source identifier: cir345}
}