@misc{indiciae80e5d559508b,
  title = {Radioactive tertiary porphyries in the Central City district, Colorado, and their bearing upon pitchblende deposition},
  author = {George Phair},
  year = {1952},
  doi = {10.3133/tei247},
  url = {https://pubs.usgs.gov/publication/tei247},
  note = {Source identifier: tei247}
}