@book{Cai2012,
author = {Cai, F. and Giles, J. and O’Keefe, P. and Wang, D.},
title= {The elderly and old age support in rural China: Challenges and prospects},
year = {2012},
doi = {10.1596/978-0-8213-8685-9},
address = {Washington D.C.},
publisher = {The World Bank},
}