TY  - RPRT
TI  - Evaluation of radon occurrence in groundwater from 16 geologic units in Pennsylvania, 1986–2015, with application to potential radon exposure from groundwater and indoor air
AU  - Eliza L. Gross
PY  - 2017
DO  - 10.3133/sir20175018
UR  - https://pubs.usgs.gov/publication/sir20175018
ID  - sir20175018
ER  -