@book{265952,
	author = {Ripalda, José María,},
	title = {Umbral de época :},
	publisher = {Siglo XXI España,},
	year = {[2021]},
	series = {Filosofía y pensamiento },
	address = {Tres Cantos, Madrid, España :},
	url = {https://www.digitaliapublishing.com/a/83788/}
}