@book{124990,
	author = {Cicero, Marcus Tullius, and Labrousse, Roger},
	title = {Las leyes.},
	publisher = {Editorial Universitaria, Universidad de Puerto Rico},
	year = {1968.},
	series = {Biblioteca de cultura basica},
	address = {[P.R.]},
	edition = {[2. ed.]},
	note = {Edicioń bilingue.}
}