@misc{indiciae1206113dca13,
  title = {Design and assembly of a portable helium detector for evaluation as a uranium exploration instrument},
  author = {G. Michael Reimer},
  year = {1976},
  doi = {10.3133/ofr76398},
  url = {https://pubs.usgs.gov/publication/ofr76398},
  note = {Source identifier: ofr76398}
}