@book{11493,
	author = {Krugman, Paul R.,  and Obstfeld, Maurice, 1952- autor},
	title = {Economía internacional :},
	publisher = {Pearson Educación, },
	year = {2012},
	address = {Madrid, España :},
	edition = {Novena edición},
	note = {Título original : International economics: theory and policy.}
}