@misc{indiciae7ff68f516b21,
  title = {A study of radioactivity in modern stream gravels and its possible application as a prospecting method},
  author = {Randall T. Chew},
  year = {1955},
  doi = {10.3133/tem629},
  url = {https://pubs.usgs.gov/publication/tem629},
  note = {Source identifier: tem629}
}