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Basic Estimated Capital Investment and Operating Costs for Coal Strip Mines
Sidney KatellE. L. HemingwayL. H. Berkshire
其他書名
Revision of Information Circular 8661
出版U.S. Department of the Interior, Bureau of Mines, 1976
URLhttp://books.google.com.hk/books?id=cKTP7D35UbIC&hl=&source=gbs_api
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