TY - JOUR T1 - Abstracts JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 20 LP - 20 DO - 10.48044/joa.1977.3.1.20 VL - 3 IS - 1 A2 - , Y1 - 1977/01/01 UR - http://auf.isa-arbor.com/content/3/1/20.abstract N2 - ER -