(Ed.), Amazonian linguistics: Studies in lowland South American languages (pp. 13–67). Austin: University of Texas Press. . Kaufman, Terrence. (1994). The native languages of South America. In C. Mosley & R. E. Asher (Eds.), Atlas of the world's languages (pp. 46–76). London: Routledge. Thiesen, W.; Thiesen, E. (1998). Diccionario: Bora - Castellano, Castellano - Bora. (Serie Lingüística Peruana, 46). Pucallpa: Summer Institute of Linguistics. Walton, J. W.; Walton, J. P.; Pakky de Buenaventura, C. (1997). Diccionario bilingüe muinane-español, español-muinane. Santafé de Bogotá: Editorial Alberto Lleras Camargo. External links Proel: Sub-familia Bóran Bora–Witoto languages Indigenous languages of the South American Northern Foothills Indigenous languages of Western Amazonia Language families