@book{60937,
	author = {Smith, David Martyn. and Hawley, Ralph Cohipman.},
	title = {The practice of silviculture},
	publisher = {Wiley,},
	year = {1962},
	address = {New York :},
	edition = {7 ed.},
	note = {Ed. anteriores por Ralp C. Hawley}
}