Runge, I. C. (1998). Mining economics and strategy. Society for Mining, Metallurgy, and Exploration.
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Chicago-čujuhus (17. p.)
Runge, Ian C. Mining Economics and Strategy. Littleton, Colo.: Society for Mining, Metallurgy, and Exploration, 1998.
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MLA-čujuhus (9. p.)
Runge, Ian C. Mining Economics and Strategy. Society for Mining, Metallurgy, and Exploration, 1998.
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