@misc{indiciae970faf862d04,
  title = {Helium soil-gas concentrations in the Torrington, Newcastle, Gillette (Wyoming), and Ekalaka (Montana) 1° x 2° quadrangles: data for a reconnaissance survey},
  author = {G. Michael Reimer and D.G. Murrey and Josh M. Been},
  year = {1980},
  doi = {10.3133/ofr80452},
  url = {https://pubs.usgs.gov/publication/ofr80452},
  note = {Source identifier: ofr80452}
}