Hryniewski, Ryszard, Dariusz Gozdowski, Wiesław Mądry, and Barbara Roszkowska-Mądra. 2011. “TYPOLOGY OF TOBACCO-BASED FARMING SYSTEMS AT THE FARM LEVEL IN SOUTH-EASTERN POLAND”. Acta Scientiarum Polonorum. Oeconomia 10 (1):21-33. https://aspe.sggw.edu.pl/article/view/613.