International Society of Arboriculture. (2000). Tree health management evaluating trees for hazard. U.S.A: American Forestry Association.
Παραπομπή Chicago StyleInternational Society of Arboriculture. Tree Health Management Evaluating Trees for Hazard. U.S.A: American Forestry Association, 2000.
Παραπομπή MLAInternational Society of Arboriculture. Tree Health Management Evaluating Trees for Hazard. U.S.A: American Forestry Association, 2000.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.