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.

Carrier, Norman, and 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.

Carrier, Norman, and 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.