@misc{indiciaefd3432c59a24,
  title = {The isotopic variation of common lead in galena from the Front Range and its geological significance},
  author = {George Phair and Henry Mela},
  year = {1955},
  doi = {10.3133/tei506},
  url = {https://pubs.usgs.gov/publication/tei506},
  note = {Source identifier: tei506}
}