TY  - BOOK
AU  - Subrahmanyam,N., Lal Brij
AU  - x
TI  - A text book of optics: x
SN  - 8121904676
U1  - 535/S941t 
PY  - 1994///
CY  - New Delhi
PB  - S. Chand
KW  - Optics
N1  - Includes
ER  -