@book{87650,
	author = {Blanco, Carlos,},
	title = {Leonardo da Vinci :},
	publisher = {De buena tinta,},
	year = {[2015]},
	address = {Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/87570/}
}