TY - JOUR T1 - Abstract JF - Arboriculture & Urban Forestry (AUF) SP - 100 LP - 100 DO - 10.48044/joa.1977.3.5.100 VL - 3 IS - 5 A2 - , Y1 - 1977/05/01 UR - http://auf.isa-arbor.com/content/3/5/100.abstract N2 - ER -