CHOJNACKA-OŻGA, L.; OŻGA, W. THE IMPORTANCE OF NATURAL RESOURCES EDUCATION TO THE ECO-FRIENDLY TOURISM. Acta Scientiarum Polonorum. Oeconomia, [S. l.], v. 9, n. 4, p. 91–100, 2010. Disponível em: https://aspe.sggw.edu.pl/article/view/665. Acesso em: 22 nov. 2024.