TY - RPRT TI - Geochemical relations and distribution of selected trace elements in ground water of the northern part of the western San Joaquin Valley, California AU - Neil M. Dubrovsky AU - John M. Neil AU - Mary C. Welker AU - Kristin D. Evenson PY - 1991 DO - 10.3133/wsp2380 UR - https://pubs.usgs.gov/publication/wsp2380 ID - wsp2380 ER -