TY  - RPRT
TI  - Mapping the radon potential of the united states: Examples from the Appalachians
AU  - L.C.S. Gundersen
AU  - R.R. Schumann
PY  - 1997
DO  - 10.1016/s0160-4120(96)00190-0
UR  - https://pubs.usgs.gov/publication/70020149
ID  - 70020149
ER  -