Recovery and preservation of Native American languages field hearing before the Committee on Education and the Workforce, U.S. House of Representatives, One Hundred Ninth Congress, second session, August 31, 2006, in Albuquerque, New Mexico.

Eitemau Tebyg

• Native American Languages Act of 1991 hearing before the Select Committee on Indian Affairs, United States Senate, One Hundred Second Congress, second session, on S. 2044 to assist native Americans in assuring the survival and continuing vitality of their languages, June 18, 1992, Washington, DC.
  Cyhoeddwyd: (1992)
• Native American Languages Act hearing before the Committee on Indian Affairs, United States Senate, One Hundred Eighth Congress, first session on S. 575, to amend the Native American Languages Act to provide for the support of the Native American language survival schools, May 15, 2003, Washington, DC.
  Cyhoeddwyd: (2003)
• In our way expanding the success of native language and culture-based education : hearing before the Committee on Indian Affairs, United States Senate, One Hundred Twelfth Congress, first session, May 26, 2011.
  Cyhoeddwyd: (2011)
• Alaska Native Languages Preservation and Enhancement Act of 1991 hearing before the Select Committee on Indian Affairs, United States Senate, One Hundred Second Congress, first session, on S. 1595 to preserve and enhance the ability of Alaska natives to speak and understand their native languages, October 19, 1991, Anchorage, AK.
  Cyhoeddwyd: (1992)
• Research on Mother Tongue Education in a Comparative International Perspective : Theoretical and Methodological Issues.
  gan: Herrlitz, Wolfgang.
  Cyhoeddwyd: (2007)