@book{118733,
	author = {World Bank. and ebrary, Inc.},
	title = {World development indicators 2011},
	publisher = {World Bank,},
	year = {2011.},
	address = {Washington, D.C. :},
	note = {Two columns to the page.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10480989}
}