PIETRZYKOWSKI , J. K. The Beginnings of salesian actions in the Warsaw borough of Powiśle . Seminare. Learned Investigations, [S. l.], v. 40, n. 2, p. 191–200, 2022. DOI: 10.21852/sem.2019.2.14. Disponível em: https://czasopisma.uksw.edu.pl/index.php/s/article/view/10356. Acesso em: 2 oct. 2024.