On approval of the project of the sewage of the city of Petrograd.May 5 - June 9.

On approval of the project of the sewage of the city of Petrograd.May 5 - June 9./ Council of Ministers.- 1915. -18 l .. - (Council of Ministers .. Inventory inventory No. 11. 1915.).-Different things.Film..I. Council of Ministers ..Electronic copy source: RGIAOriginal storage location: RGIA f.1276 op.11 d.1481