Concepts for social change.
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| 企業作者: | |
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| 格式: | 圖書 |
| 語言: | English |
| 出版: |
[Washington]
Published for Cooperative Project for Educational Development by National Training Laboratories
[1967]
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| 實物描述: | viii, 88 p. illus. 23 cm. |
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| 參考書目: | Includes bibliographies. |