@article{Poston1997,
author = {Poston, D.L. and Gu, B. and Liu, P.P. and McDaniel, S.},
title= {Son preference and the sex ratio at birth in China: A provincial level analysis},
year = {1997},
journal = {Social Biology},
volume = {44},
number = {1-2},
pages = {55--76},
}