@book{4438,
	author = {Samuelson, Paul A.},
	title = {Fundamentos de análisis económicos},
	publisher = {El Ateneo},
	year = {1977},
	address = {Buenos Aires :},
	edition = {4a. ed.},
	url = {https://biblioeco.unsa.edu.ar/pmb/images/libros/L127639.jpg}
}