The coal resources of the world : an inquiry made upon the initiative of the Executive Committee of the XII International Geological Congress, Canada, 1913 : with the assistance of geological surveys and mining geologists of different countries /
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| 企业作者: | |
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| 其他作者: | , , |
| 格式: | 会议录 图书 |
| 语言: | English |
| 出版: |
Toronto :
Morang,
1913.
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| 主题: |