1. The child's conception of number
Author: Jean Piaget; [Translated by C. Gattegno and F. M. Hodgson]
Library: Library of Faculty of Psychology and Educational Sciences University of Tehran (Tehran)
Subject: Child psychology,Number concept
Classification :
BF
723
.
N8
.
P53
2. The child's conception of number.
Author: [Translated by C. Gattegno and F. M. Hodgson]
Library: Library of Institute of Psychology and Educational Sciences of Tehran University (Tehran)
Subject: Number concept in children.,Cognition in children.
Classification :
155
.
4
P579CN
