@inbook{Cleland2001,
author = {Cleland, J. },
title= {Potatoes and pills: An overview of innovation-diffusion contribution to explanations of fertility decline},
year = {2001},
editor = {Casterline, J.B.},
booktitle = {Diffusion process and fertility transition: Selected perspectives},
address = {Washington, DC},
publisher = {National Academy Press},
pages = {39--65},
}