.Shawky, G. A. (1999). Detecting changes in fertility: In Algeria, Egypt and yemen. Cairo Demographic Center.
Chicago-čujuhus (17. p.).Shawky, Gihan A. Detecting Changes in Fertility: In Algeria, Egypt and Yemen. Cairo: Cairo Demographic Center, 1999.
MLA-čujuhus (9. p.).Shawky, Gihan A. Detecting Changes in Fertility: In Algeria, Egypt and Yemen. Cairo Demographic Center, 1999.
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