TY  - BOOK
AU  - Subrahmanyam,N..
AU  - Lal,Brij  .
TI  - A textbook of Optics / 
U1  - 535 
PY  - 1996///
CY  - New Delhi : 
PB  - S Chand , 
KW  - OPTICS
N1  - Includes index
ER  -