@inbook{Cleland2001,
author = {Cleland, J.},
title= {Potatoes and pills: An overview of innovation-diffusion contributions to explanations of fertility decline},
year = {2001},
editor = {Casterline, J.},
booktitle = {Diffusion Processes and Fertility Transition: Selected Perspectives},
address = {Washington, D. C.},
publisher = {National Research Council},
pages = {39--65},
}