@book{8463,
	author = {Smith, Moyra. and Arfin, Stuart M.},
	title = {Mental retardation and developmental delay :},
	publisher = {Oxford University Press,},
	year = {2006.},
	address = {Oxford ;},
	url = {http://www.loc.gov/catdir/toc/ecip0512/2005013749.html}
}