Derkinderen Lombeida, Jerónimo. “Evelio Echevarría, The Andes: The Complete History of Mountaineering in High South America”. Procesos. Revista Ecuatoriana de Historia, no. 52 (February 26, 2021): 268–272. Accessed July 22, 2024. https://revistas.uasb.edu.ec/index.php/procesos/article/view/2624.