@book{234045,
	author = {Narayan, Ambar. and ebrary, Inc.},
	title = {Knowing, when you do not know},
	publisher = {World Bank,},
	year = {2012.},
	series = {World Bank studies},
	address = {Washington, D.C. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10530608}
}