The effects of encrichment activities on the development of scientific interest and the attainment of scientific concepts /
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| Main Author: | |
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| Format: | Thesis Book |
| Language: | English |
| Published: |
1974.
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| Subjects: | |
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| Item Description: | Mimeographed. |
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| Physical Description: | 149 leaves : illus. ; 30 cm. |
| Bibliography: | Bibliography: leaves 147-149. |