Sánchez Medal, Ramón De los Contratos Civiles / Ramón Sánchez Medal - 22a ed. - México : Porrúa - 629 p. / 17 cm. ISBN: 970-07-7158-X Subjects--Personal Names: Sánchez Medal, Ramón Subjects--Topical Terms: Contratos 2. Contratos civilesÌ LC Class. No.: KGF822 S34 2007 Dewey Class. No.: 346.72 S211c 2007