TY  - RPRT
TI  - Fluoride occurrence in United States groundwater
AU  - Peter B. McMahon
AU  - Craig J. Brown
AU  - Tyler D. Johnson
AU  - Kenneth Belitz
AU  - Bruce D. Lindsey
PY  - 2020
DO  - 10.1016/j.scitotenv.2020.139217
UR  - https://pubs.usgs.gov/publication/70210175
ID  - 70210175
ER  -