Toward a framework for communications policy planning.
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| 格式: | 图书 |
| 语言: | English |
| 出版: |
Menlo Park, Calif. :
Institute for the Future,
1971.
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| 丛编: | Working Paper, Wp-19 (Institute for the Future).
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| 主题: |
| 实物描述: | 41pp. |
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