PT - JOURNAL ARTICLE ED - , TI - Abstracts AID - 10.48044/joa.1983.9.7.192 DP - 1983 Jul 01 TA - Arboriculture & Urban Forestry (AUF) PG - 192--192 VI - 9 IP - 7 4099 - http://auf.isa-arbor.com/content/9/7/192.short 4100 - http://auf.isa-arbor.com/content/9/7/192.full