.Shawky, G. A. (1999). Detecting changes in fertility: In Algeria, Egypt and yemen. Cairo Demographic Center.
Citazione stile Chigago Style (17a edizione).Shawky, Gihan A. Detecting Changes in Fertility: In Algeria, Egypt and Yemen. Cairo: Cairo Demographic Center, 1999.
Citatione MLA (9a ed.).Shawky, Gihan A. Detecting Changes in Fertility: In Algeria, Egypt and Yemen. Cairo Demographic Center, 1999.