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G.A. Kohnstamm Teaching children to solve a Piagetian problem of class inclusion
Engels | 155 pagina's | Mouton, 's-Gravenhage | 1967
Gedrukt boek
Geldolph A. Kohnstamm Piaget's analysis of class inclusion
right or wrong?
Engels | 153 pagina's | Mouton, The Hague [etc.] | 1967
Gedrukt boek
G.A. Kohnstamm