@book{87891,
	author = {Lynas, Mark, and Bragado Arias, Martín,},
	title = {Seis grados :},
	publisher = {Librooks,},
	year = {[2014]},
	address = {Barcelona :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/88744/}
}