@book{57257,
	author = {Keith, Heather E. and Keith, Kenneth D. and ebrary, Inc.},
	title = {Intellectual disability},
	publisher = {Wiley-Blackwell,},
	year = {c2013.},
	address = {Chichester, England :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10674805}
}