Não informado. (2020). Mining Engineering. Society for Mining, Metallurgy and Exploration.
Lua i Stíl Chicago (17ú heag.)Não informado. Mining Engineering. Littleton, Colo: Society for Mining, Metallurgy and Exploration, 2020.
Lua MLA (8ú heag.)Não informado. Mining Engineering. Society for Mining, Metallurgy and Exploration, 2020.
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