Little, R. J. A. (1982). Sampling errors of fertility rates from the WFS. International Statistical Institute; World Fertility Survey.
Chicago-referens (17:e uppl.)Little, Roderick J. A. Sampling Errors of Fertility Rates from the WFS. Voorburg, Netherlands : London, U. K.: International Statistical Institute; World Fertility Survey, 1982.
MLA-referens (8:e uppl.)Little, Roderick J. A. Sampling Errors of Fertility Rates from the WFS. International Statistical Institute; World Fertility Survey, 1982.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.