Northern Ural and Coast Range Pai-Hoi.T. 1. [Geographical locations and magnetic observations

Northern Urals and Coast Range Pai Hoy: Research.Expeditions, equipment.Imp.Rus.geogr.Oh in 1847, 1848 and 1850.T. 1. - St. Petersburg: Type.imp.Acad.Sciences, 1853-1856.- thirty. - .I. Expedition for the study of the Northern Urals (1847-1850).II.Russian geographical o-in (Petersburg).Electronic Source: PBT. 1: [Geographical locations and magnetic observations / [cit.] M. Kovalsky, E.-O.prof.Astronomy in Kazan Un-Te].- 1853. - [2], LXXIII, 309 p., 4 liters.Count .. -.I. Kovalevsky, Marian Albertovich (1821-1884).Electronic Source: PB