TY  - BOOK
AU  - Needham, Joseph
AU  - Ling, Wang
TI  - Science and civilisation in China [vol.4, Pt.3]
SN  - 9780521070607
U1  - 509.51 
PY  - 1971///
CY  - Cambridge
PB  - Cambridge University Press
KW  - China
N1  - Volume 4; Physics And Physical Technology. Part Iii: Civil Engineering And Nautics
ER  -