TY  - BOOK
AU  - Singh,Rajbir
TI  - History of chemistry / 
SN  - 8170445108
U1  - 540.1 
PY  - 1999///
CY  - Jaipur : 
PB  - Printwell Publishers Distributers
KW  - Chemistry
KW  - Mathematics
N1  - Includes bibliographical references
ER  -