TY - RPRT TI - Nitrate and pesticides in ground water in the eastern San Joaquin Valley, California : Occurrence and trends AU - Karen R. Burow AU - Sylvia V. Stork AU - N. M. Dubrovsky PY - 1998 DO - 10.3133/wri984040a UR - https://pubs.usgs.gov/publication/wri984040A ID - wri984040A ER -