Herald of the Imperial Russian Geographical Society.1857. Ch. 19.

Herald of the Imperial Russian Geographical Society.- St. Petersburg: B. and., 1856. -.I. Irkutsk Regional Museum of Local Lore.Library.Electronic Source: PB1857. Ch. 19 / Ed.Ed.Forming the post of secretary O-V.P..- A type.Eduard Pratka, 1857. - [514] p.section.Pag.: Tab .. -Bibliogr.in a substrateNote.And at the end of the Depth.Articles..I. Izobotov, VP ..Electronic Source: PB