@book{13346,
	author = {Blockhus, Jill M. and IUCN Forest Conservation Programme.},
	title = {Conserving biological diversity in managed tropical forests /},
	publisher = {IUCN/ITTO,},
	year = {1992.},
	address = {Gland, Switzerland :},
	note = {At head of title: The IUCN Forest Conservation Programme.}
}