(2004). Census of Population and Housing, 2000 [United States] Summary File 4, South Dakota / United States Department of Commerce. Bureau of the Census. [electronic resource].
Chicago-referens (17:e uppl.)Census of Population and Housing, 2000 [United States] Summary File 4, South Dakota / United States Department of Commerce. Bureau of the Census. [electronic Resource]. 2004.
MLA-referens (9:e uppl.)Census of Population and Housing, 2000 [United States] Summary File 4, South Dakota / United States Department of Commerce. Bureau of the Census. [electronic Resource]. 2004.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.