@book{82441,
	author = {Schneider, Dona. and ebrary, Inc.},
	title = {Twentieth century challenges},
	publisher = {Rutgers University Press,},
	year = {2011.},
	series = {Public health : the development of a discipline ;},
	address = {New Brunswick, N.J. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10583942}
}