@book{172108,
	author = {Citro, Constance F. and Manski, Charles F. and ebrary, Inc.},
	title = {Providing national statistics on health and social welfare programs in an era of change},
	publisher = {National Academy Press,},
	year = {1998.},
	series = {The compass series},
	address = {Washington, D.C. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10056950}
}