Costello, L. (2003). Training young trees for structure and form. California: International Society of Arboriculture.
シカゴスタイル引用形Costello, Larry. Training Young Trees for Structure and Form. California: International Society of Arboriculture, 2003.
MLA引用形式Costello, Larry. Training Young Trees for Structure and Form. California: International Society of Arboriculture, 2003.
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