@book{4055,
	author = {Niane, Djibril Tamsir. and Unesco.},
	title = {General History of Africa iv:},
	publisher = {Heinemann ;},
	year = {1984.},
	address = {London :},
	note = {At head of title: Unesco International Scientific Committee for the Drafting of a General History of Africa.},
	url = {http://www.loc.gov/catdir/description/ucal041/84256508.html}
}