Henan Sheng ren kou pu cha zi liao
河南省人口普查資料.
2000 nian ren kou pu cha zi liao
2000年人口普查资料
Zhoukou Shi fen juan
周口市分卷
Tabulation on the 2000 population census of Henan Province. Volume of Zhoukou City
2000 population census of Henan Province. Volume of Zhoukou City