National Archives (U.S.). Tenth decennial census, 1880, Washington Territory. National Archives of the United States.
Chicago-referens (17:e uppl.)National Archives (U.S.). Tenth Decennial Census, 1880, Washington Territory. [Washington: National Archives of the United States.
MLA-referens (8:e uppl.)National Archives (U.S.). Tenth Decennial Census, 1880, Washington Territory. National Archives of the United States.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.