Author Каплун Сергей Ильич Description Kaplun, Sergey Ilyich Labor protection for 2 years of the proletarian revolution. 1917-1919: (The Jubilee Essay) / Nar. com. labor. - M.: 3rd state. type., 1920. -19 with .. - . Source of the electronic copy: PB Publisher 3-я Гос. тип.
En
Ru