TY  - BOOK
AU  - Needham, Joseph
TI  - Science and civilisation in China: Joseph Needham
SN  - 521085713
U1  - 509.51, 
PY  - 1974///
CY  - London
PB  - Cambridge University Press
N1  - Content: Chemistry and chemical technology, part-2:-spagyrical discovery and invertion: magisteries of gold and immortality
ER  -