@misc{indiciaea3a0aac16e40,
  title = {Study of radioactivity in modern stream gravels as a method of prospecting},
  author = {Randall T. Chew},
  year = {1956},
  doi = {10.3133/b1030e},
  url = {https://pubs.usgs.gov/publication/b1030E},
  note = {Source identifier: b1030E}
}