@misc{indiciaeacb160fc8dac,
  title = {Preliminary geologic map showing the distribution of uranium deposits and principal ore-bearing formations of the Colorado Plateau region},
  year = {1955},
  doi = {10.3133/mf16},
  url = {https://pubs.usgs.gov/publication/mf16},
  note = {Source identifier: mf16}
}