Shigo, A. L. (1986). A new tree biology: Facts, photos, and philosophies on trees and their problems and proper care. Shigo and Trees, Assoc.
Chicago-Zitierstil (17. Ausg.)Shigo, Alex L. A New Tree Biology: Facts, Photos, and Philosophies on Trees and Their Problems and Proper Care. Durham, NH: Shigo and Trees, Assoc, 1986.
MLA-Zitierstil (9. Ausg.)Shigo, Alex L. A New Tree Biology: Facts, Photos, and Philosophies on Trees and Their Problems and Proper Care. Shigo and Trees, Assoc, 1986.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.