APA (7th ed.) Zitazioa
Runge, I. C. (1998). Mining Economics and Strategy. SME.
Chicago Style (17th ed.) Zitazioa
Runge, Ian C. Mining Economics and Strategy. Colorado: SME, 1998.
MLA (9th ed.) Zitazioa
Runge, Ian C. Mining Economics and Strategy. SME, 1998.
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