Grouping in education; a report sponsored by the Unesco Institute for Education, Hamburg.
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| 格式: | 圖書 |
| 語言: | English |
| 出版: |
New York,
J. Wiley
[1966]
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| 實物描述: | 314 p. 24 cm. |
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| 參考書目: | Bibliography: p. 298-309. |