TY  - RPRT
TI  - Geochemical interpretations of groundwater flow systems
AU  - William Back
AU  - Bruce B. Hanshaw
PY  - 2007
DO  - 10.1111/j.1752-1688.1971.tb05021.x
UR  - https://pubs.usgs.gov/publication/70227432
ID  - 70227432
ER  -