@book{9558,
	author = {Gelman, Rochel.},
	title = {Perceptual and cognitive development /},
	publisher = {Academic Press,},
	year = {c1996.},
	series = {Handbook of perception and cognition, 2nd edition},
	address = {San Diego, Calif. :},
	url = {http://www.loc.gov/catdir/description/els032/95050891.html}
}