@book{124699,
	author = {Fry, Edward Bernard},
	title = {Máquinas de enseñar y enseñanza programada},
	publisher = {Editorial Magisterio Español},
	year = {[1965]},
	series = {Colección Ciencias de la Educación; Serie Técnica},
	address = {Madrid},
	note = {Translation of : Teaching machines and programmed instruction.}
}