Bahia-de-Aguia, Paulo César, Ana Maria Souza-dos-Santos-Moreau, and Ednice de Oliveira Fontes. 2013. “PROTECTED NATURAL AREAS: A BRIEF HISTORY OF THE EMERGENCE OF NATIONAL PARKS AND EXTRACTIVE RESERVES”. Geographical Journal of Central America 1 (50): 195-213. https://www.revistas.una.ac.cr/index.php/geografica/article/view/5396.