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Annual Report - Geological and Natural History Survey of Minnesota
Geological and Natural History Survey of Minnesota
出版Geological and Natural History Survey of Minnesota., 1885
URLhttp://books.google.com.hk/books?id=Q_XUAAAAMAAJ&hl=&source=gbs_api
EBookFULL_PUBLIC_DOMAIN
註釋"American opinion on the older rocks": 18th, p. [65]-225.