@book{869,
	author = {Daniel, Theodore W. and Helms, John A.},
	title = {Principios de silvicultura /},
	publisher = {McGraw-Hill,},
	year = {1982.},
	address = {México :},
	note = {Versión original en inglés: Principles of silviculture; traducción: Ramón Elizondo Mata.}
}