Nacewska-Twardowska, Aleksandra. “Regionalizm I Multilateralizm W Polityce Handlowej Unii Europejskiej”. Equilibrium. Equilibrium. Quarterly Journal of Economics and Economic Policy 4, no. 1 (March 1, 2010): 153–162. Accessed July 4, 2024. https://apcz.umk.pl/EQUIL/article/view/EQUIL.2010.012.