@book{71547,
	author = {Petro, Gustavo, and González, Camilo,},
	title = {Petro :},
	publisher = {Editorial La Oveja Negra Ltda.,},
	year = {febrero de 2014.},
	address = {Bogotá, Colombia :},
	edition = {Primera edición.},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/37834/}
}