Dyfyniad APA

World Fertility Survey. (1980). The Mexico fertility survey, 1976-1977: A summary of findings. International Statistical Institute.

Dyfyniad Arddull Chicago

World Fertility Survey. The Mexico Fertility Survey, 1976-1977: A Summary of Findings. Voorburg, Netherlands: International Statistical Institute, 1980.

Dyfyniad MLA

World Fertility Survey. The Mexico Fertility Survey, 1976-1977: A Summary of Findings. International Statistical Institute, 1980.

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