The effects of encrichment activities on the development of scientific interest and the attainment of scientific concepts /
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| 主要作者: | |
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| 格式: | Thesis 圖書 |
| 語言: | English |
| 出版: |
1974.
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| 主題: | |
| 標簽: |
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| Item Description: | Mimeographed. |
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| 實物描述: | 149 leaves : illus. ; 30 cm. |
| 參考書目: | Bibliography: leaves 147-149. |