G.V.Plekhanov and group "Labor of labor"

Ryazanov, D.G.V.Plekhanov and the group "Liberation of Labor".- 4th ed.-Moskva: Dep.Press Mosk.Council of the river.and K. D., 1919. -74 s .. -Ex.: Without region., With a handle.litter..I. Plekhanov, G.V. II."Labor of labor", group (Geneva, city; Switzerland) .1.People (collection).Electronic copy source: PBOriginal storage: St. Petersburg State University