Szumiec A. RELATIONSHIP BETWEEN PURCHASE PRICES OF LIVE CATTLE AND RETAIL PRICES OF BEEF PRODUCTS AND CUTS IN POLAND AND SOME EU COUNTRIES DURING 2004-2007. jard [Internet]. 31Dec.2009 [cited 6May2024];12(2):241-8. Available from: http://www1.up.poznan.pl/jard/index.php/jard/article/view/815