TY  - RPRT
TI  - Radon-222 and its parent radionuclides in groundwater from two study areas in New Jersey and Maryland, U.S.A.
AU  - R. B. Wanty
AU  - S. L. Johnson
AU  - Paul H. Briggs
PY  - 1991
DO  - 10.1016/0883-2927(91)90007-c
UR  - https://pubs.usgs.gov/publication/70016357
ID  - 70016357
ER  -