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Message * Kolichestvennai︠a︡ Ot︠s︡enka Dostovernosti Izuchenii︠a︡ Osnovnykh Geologicheskikh Priznakov i Podscheta Zapasov Ugolʹnykh Mestorozhdeniĭ Po Dannym Razvedki - 5247025458 - 9785247025450