@misc{indiciae0f2146fe27df,
  title = {Preliminary report on radioactivity of some Alaskan placer samples},
  author = {James O. Harder and John C. Reed},
  year = {1945},
  doi = {10.3133/tei6},
  url = {https://pubs.usgs.gov/publication/tei6},
  note = {Source identifier: tei6}
}