PT - JOURNAL ARTICLE AU - Anton L. Higgins TI - Contract vs. Company Tree Crews AID - 10.48044/jauf.1981.022 DP - 1981 Apr 01 TA - Arboriculture & Urban Forestry (AUF) PG - 96--98 VI - 7 IP - 4 4099 - http://auf.isa-arbor.com/content/7/4/96.short 4100 - http://auf.isa-arbor.com/content/7/4/96.full