The line of the midday edge: the formation and protection of the Transbaikal border in the middle of the XVII - early XX centuri...

The line of the midday edge: the formation and protection of the Transbaikal border in the middle of the XVII - early XX centuries / N.N.Konstantinova;Ot.Ed.A.V.Konstantinov / Konstantinova N.N.- Chita: Express publishing, 2014. -Sublicenzene Treaty No. 365/25 LD of April 3, 2025..Electronic copy source: Transbaikal Kunb