NIEWĘGŁOWSKI , Jan. The Salesian Society in the Face of Educational Challenges in the Years 1918-1939. Seminare. Studies in Youth and Society, [S. l.], v. 36, n. 1, p. 151–162, 2022. DOI: 10.21852/sem.2015.1.12. Disponível em: https://czasopisma.uksw.edu.pl/s/article/view/11012. Acesso em: 15 nov. 2026.