KLUZ, M. Life and Fertility. Moral Aspects of Natural Methods of Planning Family. Studia Warmińskie, [S. l.], v. 48, p. 163–177, 2011. DOI: 10.31648/sw.293. Disponível em: https://czasopisma.uwm.edu.pl/index.php/sw/article/view/293. Acesso em: 19 jul. 2024.