CHAPÍN, Jorge. Ecología y sociedad en Guatemala. ECA: Estudios Centroamericanos, [S. l.], v. 30, n. 316-317, p. 145–150, 1975. DOI: 10.51378/eca.v30i316-317.9880. Disponível em: https://revistas.uca.edu.sv/index.php/eca/article/view/9880.. Acesso em: 9 oct. 2025.