@book{79778,
	author = {Cicerón, Marco Tulio  and Cicerón, Marco Tulio },
	title = {Ética para cada día /},
	publisher = {Península, },
	year = {2000.},
	series = {Nuestros contemporáneos },
	address = {Barcelona, España :},
	edition = {Primera edición: 2000}
}