PT - JOURNAL ARTICLE ED - , TI - Abstracts AID - 10.48044/joa.1989.15.3.71 DP - 1989 Mar 01 TA - Arboriculture & Urban Forestry (AUF) PG - 71--71 VI - 15 IP - 3 4099 - http://auf.isa-arbor.com/content/15/3/71.short 4100 - http://auf.isa-arbor.com/content/15/3/71.full SO - JOA1989 Mar 01; 15