TY - JOUR T1 - Environmental Concerns JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 71 LP - 73 DO - 10.48044/jauf.1980.018 VL - 6 IS - 3 AU - Richard V. Carr Y1 - 1980/03/01 UR - http://auf.isa-arbor.com/content/6/3/71.abstract N2 - ER -