Smithsonian Institution Bureau of American Ethnology. "The Tribes of Southern South America, at the first European contact period." Map. In The Marginal Tribes, edited by Julian H. Steward. Vol. 1 of Handbook of South American Indians. 1946. Accessed February 26, 2023. https://maps.lib.utexas.edu/maps/historical/south_amer_tribes_1946.jpg.