The child's conception of number /
Piaget, Jean, 1896-1980.
The child's conception of number / Jean Piaget. - New York : W.W. Norton & Co., 1965. - ix, 248 p. ; 23 cm. - The Norton Library N324 .
Includes bibliogr. references and index.
Number concept in children.
Cognition in children
155.4/1323
The child's conception of number / Jean Piaget. - New York : W.W. Norton & Co., 1965. - ix, 248 p. ; 23 cm. - The Norton Library N324 .
Includes bibliogr. references and index.
Number concept in children.
Cognition in children
155.4/1323
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