TY - JOUR T1 - Abstract JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 177 LP - 177 DO - 10.48044/joa.1986.12.7.177 VL - 12 IS - 7 A2 - , Y1 - 1986/07/01 UR - http://auf.isa-arbor.com/content/12/7/177.abstract N2 - ER -