MAZUR, M. Nature Protection and Tourism in National Parks. Turyzm/Tourism, [S. l.], v. 7, n. 2, p. 117–123, 1997. DOI: 10.18778/0867-5856.7.2.08. Disponível em: https://czasopisma.uni.lodz.pl/tourism/article/view/10420. Acesso em: 8 may. 2024.