00815nam0-22002891i-450-990001275710403321000127571FED01000127571(Aleph)000127571FED0100012757120000920d1977----km-y0itay50------baengEpistemology and psychology of functionsby PiagetGrizeSzeminskaBangDordrecht (NL)Reidel1977Synthese libraryPiaget,Jean<1896-1980>24722Bang,VinhGrize,Jean-BlaiseITUNINARICAUNIMARCBK990001275710403321C-25-(8319344MA1MA1Epistemology and psychology of functions380435UNINAING01