工程与技术Feasibility study and supplement : demonstration mine, using longwall mining techniques, Windber, Somerset County, PennsylvaniaPittsburgh Allison L. Bayles & Associates![Feasibility study and supplement : demonstration mine, using longwall mining techniques, Windber, Somerset County, Pennsylvania]()
Feasibility study and supplement : demonstration mine, using longwall mining techniques, Windber, Somerset County, Pennsylvania
Pittsburgh Allison L. Bayles & Associates
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《Feasibility study and supplement : demonstration mine, using longwall mining techniques, Windber, Somerset County, Pennsylvania》，Pittsburgh Allison L…
书目信息
- 作者
- Pittsburgh Allison L. Bayles & Associates
- 分类
- 工程与技术
- 语言
- 英语
- 来源
- HathiTrust