The development of mathematical concepts in children /
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| Corporate Author: | |
| Format: | Book |
| Language: | English |
| Published: |
Stanford, Calif. :
Stanford University,
1964.
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| Subjects: |
| Item Description: | "Cooperative research project number OE 727." |
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| Physical Description: | 50 pages : illustrations ; 29 cm. |
| Bibliography: | Bibliography: pages 49-50. |