Пенутијски језици — разлика између измена

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* Campbell, Lyle. (1997). "American Indian languages: The historical linguistics of Native America". New York: Oxford University Press. ISBN. {{page|year=1997|isbn=978-0-19-509427-1|pages=}}

* Callaghan, Catherine A. (1967). "Miwok–Costanoan as a subfield of Penutian". International Journal of American Linguistics, 33,. ppстр. 224–227

* Callaghan, Catherine. (1997). "Evidence for Yok-Utian". International Journal of American Linguistics, 63,. ppстр. 18–64

* Callaghan, Catherine. (2001). "More evidence for Yok-Utian: A reanalysis of the Dixon and Kroeber sets". International Journal of American Linguistics, 67 (3),. ppстр. 313–346

* DeLancey, Scott; & Golla, Victor. (1997). "The Penutian hypothesis: Retrospect and prospect". International Journal of American Linguistics, 63,. ppстр. 171–202

* Golla, Victor. (2007). "Linguistic Prehistory" in "California Prehistory: Colonization, Culture, and Complexity",. ppстр. 71–82. Terry L. Jones and Kathryn A. Klar, editors. New York: Altamira Press. ISBN. {{page|year=2007|isbn=978-0-7591-0872-1|pages=}}

* Dixon, Roland R.; & Kroeber, Alfred L. (1913a). "New linguistic families in California". American Anthropologist, 15,. ppстр. 647–655

* Dixon, Roland R.; & Kroeber, Alfred L. (1913b). "Relationship of the Indian languages of California". Science, 37,. ppстр. 225