@book{91791,
	author = {Singer, H. W. and Ansari, Javed A. and ebrary, Inc.},
	title = {Rich and poor countries},
	publisher = {Routledge,},
	year = {2003.},
	address = {London ;},
	edition = {4th ed.},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10070764}
}