@book{38067,
	author = {Ortega y Gasset, José,},
	title = {Introducción a una estimativa :},
	publisher = {Ediciones Encuentro,},
	year = {[2004]},
	series = {Opuscula Philosophica ;},
	address = {Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/33628/}
}