The third child : a study in the prediction of fertility - Westoff, Charles F.; Potter, Robert G.; Sagi, Philip C.; National Analysts, inc.; Princeton University. Office of Population Research (Princeton, N.J. : Princeton Univ. Press, 1963)
A study and analysis of the results of a survey conducted in 1960 by National Analysts, inc., Philadelphia, prepared by members of the Office of Population Research of Princeton University.
Keywords: Fertility, Human; Family size