@misc{indiciaecaebc506ff48,
  title = {Bibliography of radon in the outdoor environment and selected references on gas mobility in the ground},
  author = {Allan B. Tanner},
  year = {1992},
  doi = {10.3133/ofr92351a},
  url = {https://pubs.usgs.gov/publication/ofr92351A},
  note = {Source identifier: ofr92351A}
}