@inbook{Zhang2007,
author = {Zhang, J. and Zhao, Y.},
title= {Rising returns to schooling in urban China},
year = {2007},
editor = {Hannum, E.},
editor = {Park, A.},
booktitle = {Education and reform in China},
address = {New York, NY},
publisher = {Routledge},
pages = {248--259},
}