Cooperative courses .... ... 1916-17 Academic year

Moscow Mountains.People's university.A.L.Shanyavsky.Cooperation courses.Cooperative courses ... / Mosk.MountainsPeople's university.A.L.Shanyavsky.- Moscow, 1916. -.Electronic Source: PB... 1916-17 Academic year.- Mountains.Type., 1916. - [2], 29 s .. -.Electronic Source: PB