PT - JOURNAL ARTICLE ED - International Society of Arboriculture TI - Abstract AID - 10.48044/joa.1975.1.3.53 DP - 1975 Mar 01 TA - Arboriculture & Urban Forestry (AUF) PG - 53--53 VI - 1 IP - 3 4099 - http://auf.isa-arbor.com/content/1/3/53.short 4100 - http://auf.isa-arbor.com/content/1/3/53.full SO - JOA1975 Mar 01; 1