Economically active population estimates and projections, 1950-2025 = Evaluations et projections de la population active, 1950-2025.
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| 企業作者: | |
|---|---|
| 格式: | 圖書 |
| 語言: | English |
| 出版: |
Geneva :
International Labour Office,
[1986]-<1990- >-
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| 版: | [3rd ed.]. |
| 主題: |