Correspondence education, dynamic and diversified : Eleventh World Conference, Hotel Ashoka, New Delhi, India, 8-15 November 1978 /
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| 企业作者: | |
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| 格式: | 图书 |
| 语言: | English |
| 出版: |
[s.l. :
s.n.,
1978-1979]
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| 主题: |
| 实物描述: | 2 v. : ill. ; 20 cm. |
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| 参考书目: | Includes bibliographies. |