(1969). Nez Percé vowels and proto-Sahaptian vowel harmony. Language, 45, 45-59. Rude, Noel. (2012). Reconstructing Proto-Sahaptian Sounds. University of British Columbia Working Papers in Linguistics, Vol. 32, pp. 292–324. Papers for the Forty-seventh International Conference on Salish and Neighbouring Languages, Cranbrook, British Columbia, Canada, August 3–5, 2012, edited by Joel Dunham, John Lyon & Natalie Weber. References Language families Plateau Penutian languages Indigenous languages of the North American Plateau Indigenous languages of the United States