PROULX, Paul. Yurok Retroflection and Vowel Symbolism in Proto-Algic. Kansas Working Papers in Linguistics, [S. l.], v. 7, p. 119–123, 1982. DOI: 10.17161/KWPL.1808.3621. Disponível em: https://journals.ku.edu/kwpl/article/view/17272.. Acesso em: 5 may. 2024.