SCHLETZ, Alfons. Pisma Adama Chmielowskiego (Brata Alberta). Nasza Przeszłość, [S. l.], v. 21, p. 7–221, 1965. DOI: 10.52204/np.1965.21.7-221. Disponível em: https://ojs.academicon.pl/np/article/view/6332. Acesso em: 23 lip. 2024.