Piwowar, Arkadiusz. “THE IMPORTANCE OF A PRODUCT BRAND FOR AGRICULTURAL PRODUCERS WHEN PURCHASING MINERAL FERTILIZERS”. Acta Scientiarum Polonorum. Oeconomia 11, no. 1 (March 30, 2012): 61–68. Accessed November 22, 2024. https://aspe.sggw.edu.pl/article/view/574.