@book{3225,
	author = {Kelsen, Hans and Aftalión, Enrique R.},
	title = {La idea del derecho natural y otros ensayos},
	publisher = {Losada},
	year = {1946},
	series = {Biblioteca del instituto argentino de filosofía jurídica y social},
	address = {Buenos Aires},
	note = {Indice p. 305}
}