TY  - BOOK
AU  - Needham, Joseph
AU  - Yates, Robin D.S.
TI  - Science and civilisation in China [vol.5, Pt.6]
SN  - 9780521327275
U1  - 951 
PY  - 1994///
CY  - Cambridge
PB  - Cambridge University Press
KW  - China -- Civilization -- History
N1  - Contents: V.5 Chemistry and chemical technology Pt.6 Military technology: missiles and sieges
ER  -