@book{4666,
	author = {Gallego-Badillo, Rómulo},
	title = {Discurso constructivista sobre las tecnologías :},
	publisher = {Cooperativa Editorial Magisterio,},
	year = {1998.},
	series = {Colección Mesa Redonda ; 62},
	address = {Bogotá :},
	edition = {1a ed.}
}