The Child's Conception of Number
Jean Piaget
The Child's Conception of Number - 4th edition - London Routledge & Kegan Paul LTD 1969 - 248p 22cm
Translated by French by C. Gattegno.
Original name: La Genèse du Nombre chez l'enfant.
710031424
155.413 P589cn
The Child's Conception of Number - 4th edition - London Routledge & Kegan Paul LTD 1969 - 248p 22cm
Translated by French by C. Gattegno.
Original name: La Genèse du Nombre chez l'enfant.
710031424
155.413 P589cn