Navigation map of the Izhma River from its mouth to s.Ust-Ukhta

Party for the study of the river.Pechora and its tributaries.Navigation map of the Izhma River from its mouth to s.Ust-Ukhta: (300 versts): compiled on the shooting of 1913 by a party on the study of the river.Pechora and its tributaries: scale 250 soot.0.01 soot./ Ed.I.D.beginning.Party Ing.P.V.Ivanova;M-in the tracks of communication.Ex.int.waterways and highways.- Petrograd: ed.Ex.int.water.ways and sons.Roads, 1916. -1 l.cards .. -On the region: compiled and published according to 1913 research on the study of the river.Pechora and its tributaries.On the region.Kup.: Navigation map of the Izhma River from s.Ust-ukhta to the mouth..I. Ivanov, P.V .. II.Russia.Management of internal waterways and highways. 1.Territory (collection).Electronic copy source: PBOriginal storage: RSGMU