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Continuous Flotation of Fluorspar from a Calcareous Illinois Ore

William H. EddyJames S. BrowningJames E. Hardemon

出版	U.S. Department of the Interior, Bureau of Mines, 1967
URL	http://books.google.com.hk/books?id=e6PsnKqLI8cC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN