00924cam0-22003371i-450-99000099755040332120060525133250.0000099755FED01000099755(Aleph)000099755FED0100009975520001205d1965----km-y0itay50------bafreFRy-------001yy<<L'>>enseignement des mathématiquesnouvelles perspectivesC. Gattegno ... [et al.]3ème ed.NeuchâtelDelachaux & Niestlé1965173 p.21 cm00100099754PsicologiaEpistemologia genetica150Gattegno,Caleb47108ITUNINARICAUNIMARCBK9900009975504033215-0094225FI1FI1Enseignement des mathématiques354367UNINA