@book{90399,
	author = {Krugman, Paul R. and Obstfeld, Maurice.},
	title = {Economía internacional :},
	publisher = {Pearson Addison Wesley,},
	year = {2001.},
	address = {Madrid :},
	edition = {5ed.},
	note = {Trad. de : International economics : theory and policy 5 ed. 2000.}
}