TY  - BOOK
AU  - Smith Paul Jakov
AU  - Twitchett Denis
TI  - Cambridge history of China: volume 5 part one: the Sung dynasty and its precursors, 907-1279
SN  - 978-0-521-81248-1
U1  - 951.024 
PY  - 2009///
CY  - Cambridge
PB  - CUP
KW  - China-history
ER  -