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Basic Estimated Capital Investment and Operating Costs for Subbituminous and Lignite Coal Strip Mines
L. H. Berkshire
其他書名
Mines with Annual Production of 3, 4, and 5 MMtpy ROM Coal
出版Department of Energy, 1979
URLhttp://books.google.com.hk/books?id=2hBXe8yBxi0C&hl=&source=gbs_api
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