United States Bureau of the Census & United States. Bureau of the Census. (1966). Censuses of population and housing, 1960: Procedural history. s.n.
Dyfyniad Arddull ChicagoUnited States Bureau of the Census and United States. Bureau of the Census. Censuses of Population and Housing, 1960: Procedural History. [Washington: s.n, 1966.
Dyfyniad MLAUnited States Bureau of the Census and United States. Bureau of the Census. Censuses of Population and Housing, 1960: Procedural History. s.n, 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.