@book{389,
	author = {Cassagne, Juan Carlos},
	title = {El contrato administrativo},
	publisher = {Abeledo Perrot},
	year = {2009},
	address = {Buenos Aires :},
	edition = {3a. ed.},
	url = {https://biblioeco.unsa.edu.ar/pmb/images/libros/El Contrato Administrativo-l118399.jpg}
}