PT - JOURNAL ARTICLE ED - International Society of Arboriculture TI - Abstract AID - 10.48044/joa.1975.1.11.209 DP - 1975 Nov 01 TA - Arboriculture & Urban Forestry (AUF) PG - 211--211 VI - 1 IP - 11 4099 - http://auf.isa-arbor.com/content/1/11/211.short 4100 - http://auf.isa-arbor.com/content/1/11/211.full SO - JOA1975 Nov 01; 1