WÓLCZAŃSKI, Józef. Letters of Bishop Leon Wałęga to Archbishop Józef Bilczewski of 1900-1922. Our Past, [S. l.], v. 90, p. 181–387, 1998. DOI: 10.52204/np.1998.90.181-387. Disponível em: https://ojs.academicon.pl/np/article/view/7597. Acesso em: 20 may. 2024.