Dyfyniad APA

World Fertility Survey & International Statistical Institute. (1973). Occasional papers. International Statistical Institute.

Dyfyniad Arddull Chicago

World Fertility Survey and International Statistical Institute. Occasional Papers. Voorburg: International Statistical Institute, 1973.

Dyfyniad MLA

World Fertility Survey and International Statistical Institute. Occasional Papers. International Statistical Institute, 1973.

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