TY  - BOOK
AU  - Subrahmanyam, N. 
AU  - Brij Lal
TI  - A Text Book of Optics
SN  - 9788121926119
U1  - 535 SUB/T 
PY  - 2014///
CY  - New Delhi
PB  - S. Chand
KW  - Optics
ER  -