"Dwangarbeid." . . "Slavery." . . "Sovjet-Unie." . . "International Confederation of Free Trade Unions." . . "Arbeitslager." . . . . . . . . "Stalin's slave camps: an indictment of modern slavery. [The author named in the text as Charles A. Orr.]" . . . "Stalin's Slave Camps : an Indictment of Modern Slavery" . . . . "Stalins slavläger : en anklagelse mot det moderna slaveriet" . . "Stalin's slave camps ; an indictment of modern slavery" . . . . "Stalin's slave camps : an indictment of modern slavery" . "Stalin's slave camps : an indictment of modern slavery"@en . . . "Stalins slave camps : an indictment of modern slavery" . . . . . . . . . . . . "Stalins slavläger. En anklagelse mot det moderna slaveriet" . . . . . "Stalin's slave camps, an indictment of modern slavery" . . . . . . "Stalin's slave camps an indictment of modern slavery" . "Stalin's slave camps an indictment of modern slavery"@en . . . . . "Stalin's slave camps : An indictment of modern slavery" . . "Stalin's slave camps"@en . . . "URSS. Prison et camps." . . "Europe centrale et orientale. Prisons et camps." . . "Arbeidskampen." . . "Straflager." . . "Sowjetunion." . . "INTERNATIONAL CONFEDERATION OF FREE TRADE UNIONS" . . "Campos de concentración Unión Soviética." . . . .