Mining economics and strategy
| 主要作者: | |
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| 格式: | 圖書 | 
| 語言: | English | 
| 出版: | Littleton, Colo.
          Society for Mining, Metallurgy, and Exploration
    
        c1998. | 
| 主題: | 
| 主要作者: | |
|---|---|
| 格式: | 圖書 | 
| 語言: | English | 
| 出版: | Littleton, Colo.
          Society for Mining, Metallurgy, and Exploration
    
        c1998. | 
| 主題: |