PAWLAK, K. The evolution of the agricultural protectionism and its measures. Zeszyty Naukowe SGGW w Warszawie - Problemy Rolnictwa Światowego, [S. l.], v. 11, n. 3, p. 78–87, 2011. DOI: 10.22630/PRS.2011.11.3.46. Disponível em: https://prs.sggw.edu.pl/article/view/5428. Acesso em: 14 maj. 2024.