Carrier, N. H., & Hobcraft, J. (1971). Demographic estimation for developing societies: Manual of techniques for the detection and reduction of erros in demographic date. London School of Economics.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Carrier, Norman H., و John Hobcraft. Demographic Estimation for Developing Societies: Manual of Techniques for the Detection and Reduction of Erros in Demographic Date. London: London School of Economics, 1971.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Carrier, Norman H., و John Hobcraft. Demographic Estimation for Developing Societies: Manual of Techniques for the Detection and Reduction of Erros in Demographic Date. London School of Economics, 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.