Dyfyniad APA

Cox, P. R. (1970). Demography (4th ed.). Institute of Actuaries and the Faculty of Actuaries at the University Press.

Dyfyniad Arddull Chicago

Cox, Peter R. Demography. 4th ed. Cambridge [Eng.]: Institute of Actuaries and the Faculty of Actuaries at the University Press, 1970.

Dyfyniad MLA

Cox, Peter R. Demography. 4th ed. Institute of Actuaries and the Faculty of Actuaries at the University Press, 1970.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.