@misc{indiciae8b5fe45e3459,
  title = {Radon in the helium-bearing natural gas of the Texas panhandle},
  author = {H. Faul and G.E. Manger and A.Y. Sakakura},
  year = {1951},
  doi = {10.3133/tem239},
  url = {https://pubs.usgs.gov/publication/tem239},
  note = {Source identifier: tem239}
}