TY  - BOOK
AU  - Subrahmanyam, N.
AU  - Brij Lal
TI  - Textbook of Optics
SN  - 8121904676
U1  - 535 SUB 
PY  - 2002///
CY  - New Delhi
PB  - S. Chand and Company Ltd
KW  - Optics
ER  -