@article{Duncan1965,
author = {Duncan, Otis Dudley and Freedman, Ronald and Coble, J. Michael and Slesinger, Doris P.},
title= {Marital Fertility and Size of Family of Orientation},
year = {1965},
doi = {10.2307/2060135},
journal = {Demography},
volume = {2},
number = {1},
pages = {508--515},
}