TY - JOUR T1 - Abstract JF - Arboriculture & Urban Forestry (AUF) SP - 6 LP - 6 DO - 10.48044/joa.1982.8.1.6 VL - 8 IS - 1 A2 - , Y1 - 1982/01/01 UR - http://auf.isa-arbor.com/content/8/1/6.abstract ER -