@book{85519,
	author = {Krugman, Paul R. and Obsfeld, Maurice.},
	title = {Economía internacional :},
	publisher = {McGraw-Hill / Interamericana,},
	year = {1999.},
	address = {Madrid :},
	edition = {4 ed.},
	note = {Trad. de ; International economics, theory and policy, 4 ed., 1997}
}