OLTREMARI A., J.; ROJAS P., Álvaro. Evaluating alternatives for the recreational use of national parks. BOSQUE, [S. l.], v. 10, n. 1-2, p. 55–63, 1989. DOI: 10.4206/bosque.1989.v10n1n2-06. Disponível em: http://revistas.uach.cl/index.php/bosque/article/view/4424. Acesso em: 17 may. 2024.