Szymańska, Elżbieta. “INFLUENCE OF SPECIALIZATION ON ECONOMIC RESULTS OF PIG FARMS1”. Acta Scientiarum Polonorum. Oeconomia 11, no. 3 (September 30, 2012): 65-76. Accessed May 22, 2024. https://js.wne.sggw.pl/index.php/aspe/article/view/4060.