@misc{indiciaef25ad7c8165c,
  title = {Interpretation of data from an aerial gamma-ray survey in the Cripple Creek District, Teller County, Colorado},
  author = {James A. Pitkin and Carl L. Long},
  year = {1977},
  doi = {10.3133/ofr77534},
  url = {https://pubs.usgs.gov/publication/ofr77534},
  note = {Source identifier: ofr77534}
}