Czyżewski, Bazyli, and Agnieszka Brelik. 2013. “PUBLIC GOODS AND INTRINSIC LAND PRODUCTIVITY - DELIBERATIONS IN THE CONTEXT OF THE PARADIGM OF SUSTAINABLE AGRICULTURE”. Acta Scientiarum Polonorum. Oeconomia 12 (4):31-40. https://aspe.sggw.edu.pl/article/view/516.