@book{116270,
	author = {Piaget, Jean,},
	title = {La representación del mundo en el niño},
	publisher = {Ediciones Morata},
	year = {c1984.},
	address = {Madrid},
	edition = {6a ed.},
	note = {Translation of : La répresentation de l'espace chez l'enfant.}
}