PIĘTA, P. FARMERS’ PENSIONS AS AN INSTRUMENT OF AGRARIAN STRUCTURE CHANGES IN POLAND. Acta Scientiarum Polonorum. Oeconomia, [S. l.], v. 6, n. 4, p. 39–47, 2007. Disponível em: https://aspe.sggw.edu.pl/article/view/863. Acesso em: 19 may. 2024.