RT Journal Article SR Electronic T1 Age-Related Changes in Trees JF Arboriculture & Urban Forestry (AUF) FD International Society of Arboriculture SP 201 OP 205 DO 10.48044/jauf.1983.050 VO 9 IS 8 A1 Clark, James R. YR 1983 UL http://auf.isa-arbor.com/content/9/8/201.abstract AB