TY - JOUR T1 - A Management Approach to Tree Maintenance JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 101 LP - 107 DO - 10.48044/jauf.1977.028 VL - 3 IS - 6 AU - Richard W. Harris Y1 - 1977/06/01 UR - http://auf.isa-arbor.com/content/3/6/101.abstract N2 - ER -