@misc{indiciae81df1c9711b9,
  title = {Geology of uranium deposits in the Front Range, Colorado},
  author = {P.K. Sims and D. M. Sheridan},
  year = {1964},
  doi = {10.3133/b1159},
  url = {https://pubs.usgs.gov/publication/b1159},
  note = {Source identifier: b1159}
}