@book{70931,
	author = {Sáez Carreras, Juan and Sáez Carreras, Juan},
	title = {Pensadores de ayer para problemas de hoy... Fisósofos},
	publisher = {Universitat Oberta de Catalunya, },
	year = {2013},
	address = {[Madrid, España] :},
	url = {https://public.digitaliapublishing.com/a/29355}
}