Eun-Sook Kim. Theoretical Issues in Nuu-chah-nulth Phonology and Morphology (British Columbia). PhD thesis, University of Vancouver, 2003.

Lau Gomez, Personal Communication

Clément Vignali Chaussabel. "Personal Communication."

Zachary O'Hagan, Personal Communication

Horst Haider Munske; Nils Århammar. 2001. "Handbuch Des Friesischen: Handbook of Frisian Studies." Walter de Gruyter. Online: http://books.google.com/books/about/Handbuch_des_Friesischen.html?id=0n….

Chris Harvey. 2011. "Bodéwadminwen/Nishnabémwen Potawatomi." Online: http://www.languagegeek.com/algon/bodewadminwen/bodewadminwen.html.

Terhart, Lena. Endangered Languages Project website user suggestion.

Dr. Swintha Danielsen; Lic. Federico Villalta Rojas; Lena Terhart; Pedro Pinto; Ninon Müller; Femmy Admiraal; Danny Adelhöfer. "The Paunaka Documentation Project." Online: http://www.uni-leipzig.de/~paunakadocu/.

Northern Cheyenne Tribe. 2011. "Official Site of the Tsitsistas and So'taeo'o People." Online: http://www.cheyennenation.com/.

Pascua Yaqui Tribe