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Investigation of Tungsten Metals Corp. Deposits (Minerva Mining District) White Pine County, Nev
E. W. NewmanRobert W. GeehanRussel Reed Trengove
出版U.S. Department of the Interior, 1950
URLhttp://books.google.com.hk/books?id=LuRsWLtTZHQC&hl=&source=gbs_api
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