World Fertility Survey. (1980). The Mexico fertility survey, 1976-1977: A summary of findings. International Statistical Institute.
Chicago-referens (17:e uppl.)World Fertility Survey. The Mexico Fertility Survey, 1976-1977: A Summary of Findings. Voorburg, Netherlands: International Statistical Institute, 1980.
MLA-referens (8:e uppl.)World Fertility Survey. The Mexico Fertility Survey, 1976-1977: A Summary of Findings. International Statistical Institute, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.