@book{107376,
	author = {Cicerón, Marco Tulio, 106-43 a.C. and Valbuena, Manuel de},
	title = {Los oficios },
	publisher = {: Ediciones Promo  Libro},
	year = {, 2003},
	series = {Grandes Clásicos Universales},
	address = {Madrid, España},
	note = {Incluye índice}
}