Population growth and manpower in the Sudan a joint study by the United Nations [Secretariat] and the Government of the Sudan, Dept. of Statistics, Council of Ministers.
| 企业作者: | |
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| 格式: | 图书 |
| 语言: | English |
| 出版: |
New York
United Nations
1964
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| 丛编: | Population studies
no. 37. |
| 主题: |