TY  - BOOK
AU  - Hansen,, Valerie.
TI  - Open empire : A History of China to 1600 / 
SN  - 0-393-97374-3
U1  - 951.01 
PY  - 2000///
CY  - New York
PB  - W. W. norton
KW  - China-History
ER  -