@book{27438,
	author = {Hummel, Charles},
	title = {La educación hoy frente al mundo del mañana},
	publisher = {Voluntad Editores},
	year = {1978},
	address = {Bogotá},
	note = {Incluye notas},
	url = {http://unesdoc.unesco.org/images/0013/001360/136020so.pdf}
}