@book{91581,
	author = {Wills, A. J.},
	title = {An introduction to the history of central Africa :},
	publisher = {Oxford University Press,},
	year = {1985.},
	address = {Oxford [Oxfordshire] ;},
	edition = {4th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0606/84009740-d.html}
}