PT - JOURNAL ARTICLE AU - Stephen M. Genua TI - A Progressive Approach in Production Improvement For Tree Trimming AID - 10.48044/jauf.1982.013 DP - 1982 Feb 01 TA - Arboriculture & Urban Forestry (AUF) PG - 53--56 VI - 8 IP - 2 4099 - http://auf.isa-arbor.com/content/8/2/53.short 4100 - http://auf.isa-arbor.com/content/8/2/53.full