TY - JOUR T1 - The Arborist Needed? JF - Arboriculture & Urban Forestry (AUF) SP - 222 LP - 223 DO - 10.48044/jauf.1981.055 VL - 7 IS - 8 AU - Robert C. McConnell Y1 - 1981/08/01 UR - http://auf.isa-arbor.com/content/7/8/222.abstract N2 - ER -