TY  - BOOK
AU  - Sehgal, N.K.
AU  - Chopra, K.L.
AU  - Sehgal, D.L.
TI  - Practical Physics: For Class XI
SN  - 8170145104
U1  - 530 
PY  - 1998///
CY  - New Delhi
PB  - Sultan Chand & Sons.
ER  -