Population projections, methodology of the United Nations papers of the United Nations Ad Hoc Expert Group on Demographic Projections, United Nations Headquarters, 16-19 November 1981.
| 企業作者: | |
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| 格式: | 圖書 |
| 語言: | English |
| 出版: |
New York
United Nations
1984.
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| 叢編: | Population studies (New York, N.Y.)
no. 83. |
| 主題: |