J. Kuczynski/M. Witt [d. i. Margarete Wittkowski]: The economics of barbarism. Hitler's new economic order in Europe. London: Frederick Muller Ltd. 1942, 63 S.
J. Kuczynski/M. Witt [d. i. Margarete Wittkowski]: The economics of barbarism. Hitler's new economic order in Europe. Toronto: Progress Books 1942, 64 S.
J. Kuczynski/M. Witt [d. i. Margarete Wittkowski]: The economics of barbarism. Hitler's new economic order in Europe. New York: International Publishers 1942, 64 S.