Action research to improve school practices.
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| 格式: | 图书 |
| 语言: | English |
| 出版: |
New York,
Bureau of Publications, Teachers College, Columbia University,
1953.
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| Item Description: | "A publication of the Horace Mann-Lincoln Institute of School Experimentation." |
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| 实物描述: | 161 p. 22 cm. |