(1996). Study guide for the professional registration of mining/mineral engineers (5th ed.). Littleton, CO.: Society for Mining, Metallurgy, and Exploration.
Παραπομπή Chicago StyleStudy Guide for the Professional Registration of Mining/mineral Engineers. 5th ed. Littleton, CO.: Society for Mining, Metallurgy, and Exploration, 1996.
Παραπομπή MLAStudy Guide for the Professional Registration of Mining/mineral Engineers. 5th ed. Littleton, CO.: Society for Mining, Metallurgy, and Exploration, 1996.
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