@book{72978,
	author = {Lleras Restrepo, Carlos,},
	title = {Comercio internacional /},
	publisher = {Editorial Utadeo,},
	year = {2009.},
	address = {Bogotá :},
	edition = {Segunda edición.},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/46656/}
}