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Estimated Cost of Exploiting Enriched, Hard Manganese Ore from the Maggie Canyon Deposit, Artillery Mountains Region, Mohave County, Ariz

Douglas A. Elkins

出版	Bureau of Mines, 1964
URL	http://books.google.com.hk/books?id=RsMlvH9cWnQC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN