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Bulk Sampling by Diamond Drilling
Nils A. EilertsenK. M. Earl
其他書名
Dudley Manganese Deposit, Northern District, Aroostook County, Maine
出版U.S. Department of the Interior, Bureau of Mines, 1957
URLhttp://books.google.com.hk/books?id=ugPO_RzTIacC&hl=&source=gbs_api
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