PT - JOURNAL ARTICLE ED - , TI - Abstract AID - 10.48044/joa.1975.1.8.150 DP - 1975 Aug 01 TA - Arboriculture & Urban Forestry (AUF) PG - 150--150 VI - 1 IP - 8 4099 - http://auf.isa-arbor.com/content/1/8/150.short 4100 - http://auf.isa-arbor.com/content/1/8/150.full SO - JOA1975 Aug 01; 1