@book{26419,
	author = {Piaget, Jean and Inhelder, Bärbel and Universidad Nacional de Cuyo.},
	title = {Psicología del niño.},
	publisher = {Morata,},
	year = {1993.},
	address = {Madrid :},
	edition = {13a ed.},
	note = {Traducción de Luis Hernández Alfonso.}
}