@book{38513,
	author = {Rousseau, Jean Jacques. and Villaverde, María José,},
	title = {El contrato social :},
	publisher = {Ediciones Altaya,},
	year = {1993.},
	series = {Grandes obras del pensamiento ;},
	address = {Barcelona :},
	note = {Titulo original. Du contrat social.}
}