@book{245527,
	author = {Cotlear, D. and ebrary, Inc.},
	title = {Population aging},
	publisher = {World Bank,},
	year = {c2011.},
	series = {Directions in development. Human development},
	address = {Washington, DC :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10440519}
}