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The Iron Ores of Minnesota, their Geology, Discovery, Development, Qualities and Origin, and Comparison with those of other Iron Districts, with a Geological Map, 26 Figures and 44 Plates
N. H. Winchell
其他書名
By N. H. Winchell and H. V. Winchell
出版Harrison & Smith, State Printers, 1891
URLhttp://books.google.com.hk/books?id=uJM287UBSO0C&hl=&source=gbs_api
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