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Geology of the Wyoming Experiment Farms ; And, Notes on the Mineral Resources of the State

Wilbur Clinton Knight

出版	University of Wyoming, Agricultural College Department, Wyoming Experiment Station, 1893
URL	http://books.google.com.hk/books?id=e2MnAQAAMAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN