TY  - BOOK
TI  - isaac newton / 
U1  - J/925/ISA 
CY  - delhi
PB  - manoj publitions
KW  - SCIENTISTS
KW  - biography
KW  - ÙØ§Ø´Ø¦ÙÙ ØµØºØ§Ø± (10-14) Ø³ÙØ©
ER  -