00579nam a2200181Ia 4500001000700000003000500007005001700012008004100029050002600070100003500096240002600131245005500157260004900212300002500261500003200286504005100318650002800369325492BIBL20170711145524.0760617c19451972mx c b s001 0 spa 00aPA6315b.S8 D518 19601 aCicero, Marcus Tullius,2Local10aDe officiis.lSpanish14aLos deberesblibro primerocMarco Tulio Cicerón.0 aRio PiedrasbLibrería Universitariac1960. axviii, 274 p.bport. aTranslation of De officiis. aIncludes bibliographical references and index. 0aEthics, Ancient.2Local