TY - JOUR T1 - Staffing for the ‘90’s JF - Arboriculture & Urban Forestry (AUF) SP - 322 LP - 325 DO - 10.48044/jauf.1990.070 VL - 16 IS - 12 AU - John Hendrickson Y1 - 1990/12/01 UR - http://auf.isa-arbor.com/content/16/12/322.abstract N2 - ER -