@book{4003,
	author = {López, Néstor and Beccaria, Luis A.},
	title = {Sin Trabajo},
	publisher = {Losada},
	year = {1997},
	address = {Buenos Aires :},
	edition = {2a. ed.},
	url = {https://www.biblioeco.unsa.edu.ar/pmb/images/libros/L127186.jpg}
}