The Kama River and its water system with adjacent pools of the rivers of S. Dvina, Pechera and Irtysh

The Kama River and its water system with adjacent pools of the S. Dvina river, paces and Irtysh: M. 75 versts in inch / comp.AND I.Krivoshcheks.- [Perm: Zincography Perm.lips.Zemstvo, 1912].-1 l.cards .. -.I. Krivoshchekov, I.Ya ..Electronic copy source: PB