00769nam0-22002891i-450-99000413428040332120080604113123.0000413428FED01000413428(Aleph)000413428FED0100041342819990604d1973----km-y0itay50------bafrey-------00-cdPiagetGuy CellerierParisPresses Universitaires de France1973116 p.18 cmCollection Sup.PhilosophesPiaget, JeanCellerier,Guy45646ITUNINARICAUNIMARCBK990004134280403321P.1 PE 333I.PED.1321FLFBCFLFBCPiaget477303UNINA