@book{721,
	author = {Williams, John George, and Arlott, Norman.},
	title = {Birds of East Africa /},
	publisher = {Collins,},
	year = {c1980.},
	address = {London :},
	edition = {[Completely rev. ed.] /},
	note = {Rev., enl., and newly illustrated ed. of A field guide to the birds of east and central Africa.}
}