@book{80818,
	author = {Helpman, Elhanan, and Reyes Mazzoni, Roberto,},
	title = {El comercio internacional /},
	publisher = {Fondo de Cultura Económica,},
	year = {2014.},
	series = {Breviarios del Fondo de Cultura Económica ;},
	address = {México D.F. :},
	edition = {Primera edición electrónica.},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/64255/}
}