@techreport{China Health and Nutrition Survey2013a,
author = {China Health and Nutrition Survey},
title= {Household income variable construction},
year = {2013a},
URL = {http://www.cpc.unc.edu/projects/china/data/datasets/Household%20Income%20Variable%20Construction.pdf},
publisher = {Carolina Population Center},
address = {Chapel Hill},
}