@book{28236,
	author = {Vygotski, Liev Semiónovich},
	title = {Obras escogidas :},
	publisher = {Visor,},
	year = {1997.},
	series = {Col. Aprendizaje ;},
	address = {Madrid :},
	edition = {2a ed.},
	note = {Con apéndices. La Institución posee la obra completa.}
}