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Lua i Stíl Chicago (17ú heag.)ebrary, Inc, agus George Wesley Poling. Underwater Tailing Placement at Island Copper Mine: A Success Story. Littleton, Colo.: Society for Mining, Metallurgy, and Exploration, 2002.
Lua MLA (9ú heag.)ebrary, Inc, agus George Wesley Poling. Underwater Tailing Placement at Island Copper Mine: A Success Story. Society for Mining, Metallurgy, and Exploration, 2002.
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