@book{61448,
	author = {Piaget, Jean, 1896-1980.},
	title = {The language and thought of the child /},
	publisher = {Routledge,},
	year = {c1959.},
	address = {London :},
	edition = {3rd rev. and enl. ed.},
	note = {Translation of Le Language et la penseo chez l'enfant.}
}