Normist of mountain manual works of Kuzbass / [comp.: G.V. Bykov, A.V. Krasin]

Normirover of mountain manual works of Kuzbass / [comp.: G.V. Bykov, A.V. Krasin] / state.The All -Union Association of the Carboniferous Prom of the Eastern Part of the USSR - "Subtugol".- Novosibirsk: Ogiza's seals of Ogiza, 1931. -Def.: A typo of numbering p.48-49..Source of an electronic copy: Kuzbass GNB named afterV.D. Fedorova