United States. Census Office. U.S. Census, 1870. Govt. Printing Office, 1870].
Dyfyniad Arddull ChicagoUnited States. Census Office. U.S. Census, 1870. [Washington, D.C.: Govt. Printing Office, 1870].
Dyfyniad MLAUnited States. Census Office. U.S. Census, 1870. Govt. Printing Office, 1870].
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.