TY  - BOOK
AU  - Song,Yingxing
TI  - 天工開物
AV  - Q 
PY  - 2008///
PB  - Project Gutenberg
KW  - Technology -- China -- History
KW  - Science -- China -- History
N1  - Public domain in the USA; Electronic text
UR  - http://www.gutenberg.org/ebooks/25273
ER  -