RT Journal Article SR Electronic T1 The Midwest Urban Tree Index JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 230 OP 237 DO 10.48044/jauf.1993.037 VO 19 IS 4 A1 Kenneth J. Schoon YR 1993 UL http://auf.isa-arbor.com/content/19/4/230.abstract