PT - JOURNAL ARTICLE ED - International Society of Arboriculture TI - Abstract AID - 10.48044/joa.1975.1.10.187 DP - 1975 Oct 01 TA - Arboriculture & Urban Forestry (AUF) PG - 187--187 VI - 1 IP - 10 4099 - http://auf.isa-arbor.com/content/1/10/187.short 4100 - http://auf.isa-arbor.com/content/1/10/187.full SO - JOA1975 Oct 01; 1