1. Rodríguez, G. and Cleland, J. Socio-economic determinants of marital fertility in twenty countries: a multivariate analysis. World Fertility Survey Conference, 1980: A Record of Proceedings. Vol. 2, pp.337–345. International Statistical Institute. in
2. Social Structure and Fertility: An Analytic Framework
3. series A;Gaslonde S.,1970
4. A Framework for Analyzing the Proximate Determinants of Fertility
5. Cleland, J. G. and Chidambaram, V. C. 1981. The contribution of the World Fertility Survey to an understanding of fertility determinants and trends. IUSSP General Conference. 1981, Manila.