TY  - BOOK
AU  - Subrahmanayam, N
AU  - Brij Lal
TI  - Text book of optics
SN  - 8121904676
U1  - 535.2 
PY  - 1999///
CY  - New Delhi
PB  - R. Chand and Co.
KW  - Applied Sc
KW  - Physics
ER  -