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Akmajian, Adrian; Anderson, Stephen (January 1970). «On the use of the fourth person in Navajo, or Navajo made harder». International Journal of American Linguistics36 (1): 1-8. S2CID143473426. doi:10.1086/465082.
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nationalww2museum.org
«American Indian Code Talkers». The National WWII Museum | New Orleans(en inglés). Archivado desde el original el January 27, 2019. Consultado el 27 de enero de 2019.
Akmajian, Adrian; Anderson, Stephen (January 1970). «On the use of the fourth person in Navajo, or Navajo made harder». International Journal of American Linguistics36 (1): 1-8. S2CID143473426. doi:10.1086/465082.
«American Indian Code Talkers». The National WWII Museum | New Orleans(en inglés). Archivado desde el original el January 27, 2019. Consultado el 27 de enero de 2019.