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RuРазработка месторождений руд черных металлов
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Collection of laws and regulations of the Workers 'and Peasants' Government of the Union of Soviet Socialist Republics. February 18, 1930 No. 3. Otd. 2
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THE USSR. Laws and regulations. Collection of laws and regulations of the Workers 'and Peasants' Government of the Union of Soviet Socialist Republics. Moscow, 1924-1937. February 18, 1930 No. 3. Otd. 2. 1930]. |