TY - RPRT TI - Analysis of soil samples from the San Joaquin Valley of California AU - S. A. Wilson AU - K. R. Kennedy AU - C. A. Gent AU - Paul H. Briggs AU - R.R. Tidball AU - J.M. McNeal PY - 1990 DO - 10.3133/ofr90214 UR - https://pubs.usgs.gov/publication/ofr90214 ID - ofr90214 ER -