@book{4260,
	author = {Romer, David},
	title = {Advanced Macroeconomics},
	publisher = {Mc Graw-Hill},
	year = {2001},
	address = {Boston :},
	edition = {2a. ed.},
	url = {https://www.biblioeco.unsa.edu.ar/pmb/images/libros/L127360.jpg}
}