TY - JOUR T1 - Abstract JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 207 LP - 207 DO - 10.48044/joa.1975.1.11.207 VL - 1 IS - 11 A2 - , Y1 - 1975/11/01 UR - http://auf.isa-arbor.com/content/1/11/207.abstract ER -