TransliterationKreyter, V.M. Zhuravskiy A Gornoe delo. Vypusk 1. Seriya III. Osnovnye printsipy klassifikatsii i podscheta zapasov poleznykh iskopaemykh
In EnglishCrater, V.M. Zhuravsky A Mining. Issue 1. Series III. Basic Principles of Classification and Calculation of Mineral Reserves In Russian (ask us if in doubt)
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