'Ušība, I. H. T., & Saiyid, H. '. (1991). The fertility impact of contraceptive use in Egypt: An aggregate analysis. Cairo Demographic Centre.
Chicago Style (17th ed.) Citation'Ušība, Ibrāhīm Huḍair Taha, and Husain 'Abd-al-'Azīz Saiyid. The Fertility Impact of Contraceptive Use in Egypt: An Aggregate Analysis. Cairo: Cairo Demographic Centre, 1991.
MLA (9th ed.) Citation'Ušība, Ibrāhīm Huḍair Taha, and Husain 'Abd-al-'Azīz Saiyid. The Fertility Impact of Contraceptive Use in Egypt: An Aggregate Analysis. Cairo Demographic Centre, 1991.
Warning: These citations may not always be 100% accurate.