Carrier, N., & Hobcraft, J. (1971). Demographic estimation for developing societies: A manual of techniques for the detection and reduction of errors in demographic data. London School of Economics, Population Investigation Committee.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Carrier, Norman, و John Hobcraft. Demographic Estimation for Developing Societies: A Manual of Techniques for the Detection and Reduction of Errors in Demographic Data. London: London School of Economics, Population Investigation Committee, 1971.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Carrier, Norman, و John Hobcraft. Demographic Estimation for Developing Societies: A Manual of Techniques for the Detection and Reduction of Errors in Demographic Data. London School of Economics, Population Investigation Committee, 1971.