@book{43499,
	author = {Piaget, Jean, and ebrary, Inc.},
	title = {Judgment and reasoning in the child},
	publisher = {Routledge,},
	year = {2002.},
	series = {International library of psychology},
	address = {London :},
	note = {Originally published: London : Routledge and K. Paul, 1928.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10070851}
}