@misc{indiciae0a183ee3954c,
  title = {Geologic radon potential of EPA Region 6; Arkansas, Louisiana, New Mexico, Oklahoma, and Texas},
  year = {1993},
  doi = {10.3133/ofr93292f},
  url = {https://pubs.usgs.gov/publication/ofr93292F},
  note = {Source identifier: ofr93292F}
}