En
Ru| Author | |
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| Description |
Volsky, A.A.Russian coal farm / Horn.Ing.A.A.Volsky.- St. Petersburg: Type.P.P.Soykina, 1905. -82 p.: table .. -Extract.From the Izvestia Society of Mining Engineers for 1904.1. Territory (collection).Electronic copy source: PBOriginal storage: St. Petersburg State University
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| Publisher | тип. П.П. Сойкина |