@book{Moultrie2012,
author = {Moultrie, T.A. and Dorrington, R.E.   and Hill, A.G. and Hill, K.H.   and Timæus, I.M.   and Zaba, B.},
title= {Tools for Demographic Estimation},
year = {2012},
address = {Paris},
publisher = {International Union for the Scientific Study of Population},
}