BARTYŚ, Julian. Beginnings of Mechanization in Polish Agriculture. Studia Historiae Oeconomicae, [S. l.], v. 3, n. 1, p. 135–158, 1969. DOI: 10.14746/sho.1969.03.1.008. Disponível em: https://pressto.amu.edu.pl/index.php/sho/article/view/57016. Acesso em: 3 oct. 2026.