40 th annual conference on population and development Cairo & Cairo Demographic Centre. (2012). the 40th annual conference on population and development issues and future prospects: Cdc monographs. Cairo Demographic Center.

40 th annual conference on population and development Cairo and Cairo Demographic Centre. The 40th Annual Conference on Population and Development Issues and Future Prospects: Cdc Monographs. Cairo: Cairo Demographic Center, 2012.

40 th annual conference on population and development Cairo and Cairo Demographic Centre. The 40th Annual Conference on Population and Development Issues and Future Prospects: Cdc Monographs. Cairo Demographic Center, 2012.