Dyfyniad APA

World Fertility Survey. (1980). The Guyana fertility survey, 1975: A summary of findings. International Statistical Institute ; World Fertility Survey.

Dyfyniad Arddull Chicago

World Fertility Survey. The Guyana Fertility Survey, 1975: A Summary of Findings. Voorburg, Netherlands : London: International Statistical Institute ; World Fertility Survey, 1980.

Dyfyniad MLA

World Fertility Survey. The Guyana Fertility Survey, 1975: A Summary of Findings. International Statistical Institute ; World Fertility Survey, 1980.

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