@book{329,
	author = {Kelsen, Hans  and Calsamiglia, Albert },
	title = {¿Qué es la justicia? / },
	publisher = {Ariel, },
	year = {1992},
	series = {Ariel Quincenal},
	address = {Barcelona :},
	edition = {2a. ed.},
	note = {Bibliografía y notas a pie de página.}
}