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Lovell, Kenneth.

The growth of basic mathematical and scientific concepts in children, by K. Lovell; foreword by Bärbel Inhelder. - New York, Philosophical Library [1962, c1961] - 154 p. illus. 23 cm.

Includes bibliographies.

62052976


Number concept in children.
Conservation (Psychology)

QA135 / .L815

136.7 / LOG
Last Updated on September 15, 2019
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