@book{3249,
	author = {Cassen, Robert.},
	title = {Does aid work? :},
	publisher = {Clarendon Press ;},
	year = {1994.},
	address = {Oxford :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0606/93036972-d.html}
}