51. Mining methods of fields of hard mineral wealth's by a underground method. Terminology. Executive editor-in-chief Academician L.D.SHevyakov/ei001051 Electronic Issue, M. -ETS Publishing House, 2001 Paper Issue: Edition N51. Moscow, Publishing House of Academy of Sciences of USSR , 1959, pp.16, terms 62 (in Russian).

51. Mining methods of fields of hard mineral wealth's by a underground method. Terminology. Executive editor-in-chief Academician L.D.SHevyakov

Electronic Issue, M. -ETS Publishing House, 2001
Paper Issue: Edition N51. Moscow, Publishing House of Academy of Sciences of USSR , 1959, pp.16, terms 62 (in Russian).

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