ZwoliƄska-Ligaj, M. (2015). AREAS OF BUSINESS ACTIVITY IN THE DEVELOPMENT OF ENVIRONMENTALLY VALUABLE ECO-PRODUCTS - AS EXEMPLIFIED BY THE LUBLIN VOIVODESHIP. Acta Scientiarum Polonorum. Oeconomia, 14(3), 157-166. Retrieved from https://js.wne.sggw.pl/index.php/aspe/article/view/4190