00790nam0-22003011i-450-9900030329904033210-09-146670-9000303299FED01000303299(Aleph)000303299FED0100030329920000920d1982----km-y0itay50------baENGIT<<The >>Concept of Classan Historical IntroductionPeter Calvert.LondonHutchinson1982.254 p.23 cmClassi socialiStoria14230Calvert,PeterITUNINARICAUNIMARCBK99000303299040332114230 CAL12240/ISESSESConcept of Class463450UNINAING01