@book{7107,
	author = {Hintze, Susana},
	title = {Trueque y economía solidaria},
	publisher = {Universidad Nacional de General Sarmiento},
	year = {2003},
	address = {Los Polvorines :},
	url = {https://www.biblioeco.unsa.edu.ar/pmb/images/libros/L129302.jpg}
}