Łapa, Małgorzata. “The Obligatory Cartelization of Industry in the Polish Republic II (1925-1933)”. Acta Universitatis Lodziensis. Folia Historica, no. 60 (January 1, 1997): 41–59. Accessed December 6, 2025. https://czasopisma.uni.lodz.pl/historica/article/view/22311.