Aguirre, A., & Hill, A. G. (1987). Childhood mortality estimates using the preceding birth technique: Some applications and extensions. Centre for Population Studies, London School of Hygiene & Tropical Medicine.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Aguirre, Alejandro, و Allan G. Hill. Childhood Mortality Estimates Using the Preceding Birth Technique: Some Applications and Extensions. London: Centre for Population Studies, London School of Hygiene & Tropical Medicine, 1987.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Aguirre, Alejandro, و Allan G. Hill. Childhood Mortality Estimates Using the Preceding Birth Technique: Some Applications and Extensions. Centre for Population Studies, London School of Hygiene & Tropical Medicine, 1987.
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