RT Journal Article SR Electronic T1 Ordinance Control of Street Trees JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 212 OP 216 DO 10.48044/jauf.1975.052 VO 1 IS 11 A1 Philip A. Barker YR 1975 UL http://auf.isa-arbor.com/content/1/11/212.abstract AB