Kopiński, Jerzy. “THE COMPARISON OF CHANGES IN THE IMPLEMENTATION OF PRODUCTION AND ENVIRONMENTAL AIMS OF AGRICULTURE IN SELECTED GROUPS OF VOIVODSHIPS”. Acta Scientiarum Polonorum. Oeconomia 16, no. 2 (June 30, 2017): 87–95. Accessed February 2, 2026. https://aspe.sggw.edu.pl/article/view/331.