@misc{indiciae95d5de2270e0,
  title = {Geologic radon potential of EPA Region 1; Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont},
  year = {1993},
  doi = {10.3133/ofr93292a},
  url = {https://pubs.usgs.gov/publication/ofr93292A},
  note = {Source identifier: ofr93292A}
}