@book{4910,
	author = {Gravelle, Hugh and Rees, Ray},
	title = {Microeconomía},
	publisher = {Pearson Educación},
	year = {2006},
	address = {Madrid :},
	edition = {3a. ed.},
	url = {https://www.biblioeco.unsa.edu.ar/pmb/images/libros/L128221.jpg}
}