TY  - BOOK
AU  - Needham, Joseph
TI  - Science and civilisation in china: Joseph Needham
SN  - 052108573-x.
U1  - 509.51, 
PY  - 1980///
CY  - Cambridge
PB  - University Press
N1  - Chemistry and chemical technology, part.4:-spagyrical discovery and invention: apparatus, theories and gifts
ER  -