Beck, Hanno. “Humboldt-Dokumente Aus Dem Museum Jijon Y Caamano in Quito”. ERDKUNDE 15, no. 2 (April 30, 1961): 154–155. Accessed December 4, 2024. https://journals-test.ulb.uni-bonn.de/index.php/erdkunde/article/view/1347.