TY - RPRT TI - Element associations in soils of the San Joaquin Valley, California AU - R.R. Tidball AU - R. C. Severson AU - C. A. Gent AU - G. O. Riddle PY - 1986 DO - 10.3133/ofr86583 UR - https://pubs.usgs.gov/publication/ofr86583 ID - ofr86583 ER -