TY  - BOOK
AU  - Arupratan,Bhattacharya .
TI  - Newton gelen Einstein elen / 
SN  - 8185252254
U1  - 500.81 
PY  - 1990///
CY  - Kolkata : 
PB  - Best Books , 
KW  - SCIENCE-BIO-BIBLIOGRAPHY
KW  - SCIENTISTS-BIOGRAPHY
N1  - NULL
ER  -