Little, R. J. A. (1982). Sampling errors of fertility rates from the WFS. International Statistical Institute; World Fertility Survey.
芝加哥风格引文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引文Little, Roderick J. A. Sampling Errors of Fertility Rates from the WFS. International Statistical Institute; World Fertility Survey, 1982.
警告：这些引文格式不一定是100％准确.