LONGOSZ, S. Ks. Roman Ryszard Piętka MIC (7 XI 1937 - 26 III 2011). Vox Patrum, [S. l.], v. 56, p. 999–1001, 2011. DOI: 10.31743/vp.4307. Disponível em: https://czasopisma.kul.pl/index.php/vp/article/view/4307. Acesso em: 29 mar. 2024.