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Bureau of Mines Procedure for Evaluating Quartz Content of Respirable Coal Mine Dust

Samuel A. GoldbergMurray Jacobson

出版	U.S. Bureau of Mines, 1972
URL	http://books.google.com.hk/books?id=gmYXWDM9P2YC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN