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1Overgenomen uit "International Review of Social History", Vl. XVII (1972), delen 1-2
By Rougerie, Jacques, Haan, Tristan, Haupt, Georges, Molnar, Miklos
Date 1972 -
2Uit "International Review of Social history" 17(1972) 1-2
By Devreese, Daisy, Rougerie, Jacques
Date 1972