@book{67227,
	author = {Varela Ortega, José.},
	title = {Una paradoja histórica :},
	publisher = {Biblioteca Nueva :},
	year = {2004.},
	series = {Los papeles de la Ortega ;},
	address = {Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/5104/}
}