Improving the shipping conditions of the Shaksna River.Part 1

Improving the shipping conditions of the Sheksna River: to the project, performed in 1912 by the Party on the Research and Compilation of the Project Reducation of the Mariinsky and Tikhvinsky Systems / MPS.Ex.int.water.ways and highways.- Petrograd: Type.T-va p. F."Electro -type. N.Ya. Stekova", 1916. -.I. Russia.Management of internal waterways and highways. 1.Territory (collection).Electronic copy source: PBOriginal storage: RGOPart 1. - 1916. - [3], IV, 264, [1] p., 32 l.Il., maps., Count., pl.: il., table .. -.1. Territory (collection).Electronic copy source: PBOriginal storage: RGO