KRAJEWSKI, Piotr. Ecological Education in Church Documents and Canon Law. Paedagogia Christiana, [S. l.], v. 28, n. 2, p. 145–163, 2011. DOI: 10.12775/PCh.2011.009. Disponível em: https://apcz.umk.pl/PCh/article/view/PCh.2011.009. Acesso em: 9 apr. 2025.