KACZOCHA, Włodzimierz; SIKORA, Jan. ETHICAL VALUES AND NORMS IN THE MANAGEMENT OF ATTRACTIVE NATURAL AREAS. Economics and Environment, Poland, v. 63, n. 4, p. 10, 2017. Disponível em: https://ekonomiaisrodowisko.pl/journal/article/view/328.. Acesso em: 24 apr. 2025.