@book{789,
	author = {Smith, David M., },
	title = {The practice of silviculture : applied forest ecology / },
	publisher = {Wiley, },
	year = {1997.},
	address = {New York : },
	edition = {9th ed.},
	note = {Rev. ed. of: The practice of silvicultur / David M. Smith. 8th ed. 1986.}
}