Statistics of the gainfully-occupied population; definitions and classifications recommended by the Committee of Statistical Experts.
| 企业作者: | |
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| 格式: | 图书 | 
| 语言: | English | 
| 出版: | Geneva
        
        1938. | 
| 丛编: | League of Nations. Series of publications. II. Economic and financial. 1938.II.A.12 | 
| 主题: |