@misc{indiciae95f9b60ae411,
  title = {Natural gamma aeroradioactivity of the Gnome (Carlsbad) area, New Mexico and Texas},
  author = {J. A. MacKallor},
  year = {1964},
  doi = {10.3133/gp462},
  url = {https://pubs.usgs.gov/publication/gp462},
  note = {Source identifier: gp462}
}