SUPADY, G. Not only the Bible and the Hymnal. On discovered books by Gustaw Kayka (1893–1945). Bibliotekarz Podlaski, [S. l.], v. 50, n. 1, p. 203–214, 2021. DOI: 10.36770/bp.585. Disponível em: https://bibliotekarzpodlaski.pl/index.php/bp/article/view/585. Acesso em: 20 apr. 2024.