TY - JOUR AU - Chancellor, William AU - Schmidt, Roy TI - Vehicle ruts indicate amount of soil compaction JF - California Agriculture JO - Calif Agr Y1 - 1960/12/01 VL - 14 IS - 12 SP - 12 EP - 12 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v014n12p12c AB -