923.247
N364U
           Nachaev, Sergei
               The Unmentionable Nechaev a key to Bolshevism \ Sergei Nachaev - London : George Allen and Unwin, 1961.
               198p.
36563
                Subjects: Nachaev, Sergei-Biography; Politicians-Russia-Biography; Revolutionaries-Russia-Biography; Soviet Union-History-Revolutions, 1917-1921.