RT Journal Article SR Electronic T1 Activities Of the Ctla JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 121 OP 124 DO 10.48044/jauf.1978.029 VO 4 IS 6 A1 Chadwick, L.C. YR 1978 UL http://auf.isa-arbor.com/content/4/6/121.abstract AB