TY  - BOOK
AU  - Needham,Joseph
TI  - Science and Civilisation in China: Physics and Physical Technology : Civil Engineering and Nautics
PY  - 1971///
CY  - Taipei
PB  - ÀsñÙ╣¤«Ð¬Ðñ└ª│¡¡ñ¢Ñq
KW  - Science -- Society -- Technology -- Nautics
N1  - Sections 28-29
ER  -