Pawlak, Karolina. “Changes in Polish Foreign Trade in Agri-Food Products under Accession to the European Union”. Journal of Agribusiness and Rural Development 6, no. 385 (December 31, 2007): 97-107. Accessed May 6, 2024. http://www1.up.poznan.pl/jard/index.php/jard/article/view/962.