TY  - BOOK
AU  - K.L. Chopra, N.K. Sehgal
AU  - Sehgal, D.I.
TI  - Modern Physcis
U1  - 539 
PY  - 1991///
CY  - New Delhi
PB  - Sultan Chand and Sons
KW  - Physics
KW  - Modern Physics
ER  -