TY  - RPRT
TI  - Geologic radon potential of EPA Region 4; Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee
PY  - 1993
DO  - 10.3133/ofr93292d
UR  - https://pubs.usgs.gov/publication/ofr93292D
ID  - ofr93292D
ER  -