@inbook{Simmons1992,
author = {Simmons, G.},
title= {Demand and supply, not supply vs. demand: Appropriate theory for the study of effects of family planning programmes on fertility},
year = {1992},
editor = {Phillips, J.F.},
editor = {Ross, J.A.},
booktitle = {Family planning programmes and fertility},
address = {Oxford},
publisher = {Clarendon Press},
}