@book{52421,
	author = {Steiner, Rudolf,},
	title = {La cuarta dimensión :},
	publisher = {Editorial Antroposófica,},
	year = {2016.},
	address = {Buenos Aires :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://elibro.net/ereader/bibliocun/218743}
}