TY  - BOOK
AU  - Barnal,J D
AU  - Lahiri,Ashis
TI  - ইতিহাসে বিজ্ঞান
SN  - 8177564331:
U1  - 509 21st
PY  - 2005///
CY  - Kolkata : 
PB  - Ananda Publishers , 
KW  - SCIENCE
KW  - HISTORY
KW  - BIGYAN-HISTORY
N1  - Includes index.
ER  -