@book{3820,
	author = {Krugman, Paul R. and Obstfeld, Maurice},
	title = {Economía internacional},
	publisher = {McGraw-Hill},
	year = {1995},
	address = {Madrid :},
	edition = {3a. ed.},
	url = {https://www.biblioeco.unsa.edu.ar/pmb/images/libros/L127000.jpg}
}