United States. Census Office. U.S. Census, 1870. Govt. Printing Office, 1870].
Chicago-referens (17:e uppl.)United States. Census Office. U.S. Census, 1870. [Washington, D.C.: Govt. Printing Office, 1870].
MLA-referens (8:e uppl.)United States. Census Office. U.S. Census, 1870. Govt. Printing Office, 1870].
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.