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Report on the Geology and Topography of a Portion of the Lake Superior Land District in the State of Michigan: The iron region, together with the general geology

John Wells FosterJosiah Dwight Whitney

出版	House of Reps., 1851
URL	http://books.google.com.hk/books?id=gxpKAAAAcAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN