@book{23022,
	author = {Piaget, Jean,},
	title = {Seis estudios de psicología/},
	publisher = {Labor, },
	year = {1995.},
	series = {Colección Labor.},
	address = {Colombia },
	edition = {4a. ed.},
	note = {Traducción de: Six Études de psychologie.}
}