@book{12614,
	author = {MACDONALD, L H},
	title = {Agro forestry in the african Humid tropics},
	publisher = {The united nation },
	year = {1982},
	address = {Japan },
	edition = {6th ed.},
	note = {proceedings of a workshop held in Ibadan, Nigeria 27 April- 1 May 1981}
}