TY  - BOOK
AU  - Subrahmanyam, N
AU  - Brij Lal
TI  - A textbook of optics
SN  - 8121926114
U1  - 535 
PY  - 2004///
CY  - New Delhi 
PB  - Sultan Chand & Company 
KW  - Physics
KW  - Opticals
N1  - Includes appendix
ER  -