TY  - BOOK
AU  - Ying-Hsing, Sung
AU  - Ying-Hsing,Sung
TI  - Chinese Technology in the Seventeenth Century
SN  - 0486295931   
U1  - Q62 
PY  - 1997///
CY  - New York
PB  - Dover Publications Inc
N1  - includes index and biblioraphy
ER  -