Arborists' Certification Study Guide
de Sharon Lilly · Publicada por primera vez en 2001
A study guide for those aspiring to successfully complete the exam for certification as "arborist", as granted by The International Society of Arborists (ISA). The exam covers ten domains deemed critical to care for trees and utilize same in our communities, parks and homesites. The certification is emblematic of a working knowledge of tree care, species identification, site suitability, health issues, diagnosis of disease, damage and treatment of same.
