TY  - RPRT
TI  - Maps showing areas in the San Francisco Bay region where nitrate, boron, and dissolved solids in ground water may influence local or regional development
AU  - D.A. Webster
PY  - 1972
DO  - 10.3133/mf432
UR  - https://pubs.usgs.gov/publication/mf432
ID  - mf432
ER  -