Handbook for students of the Siberian Institute of Agriculture and Forestry at the course of rural engineering.Dep.8 issue.1: Le...

Handbook for students of the Siberian Institute of Agriculture and Forestry at the course of rural engineering.Dep.8 issue.1: The lesson position "General rules and earthwork" / Golyshev P.P.- Omsk, 1927. -605: Territory..Electronic copy source: Omsk Gonb