TY  - BOOK
AU  - Subrahmanyam, N.
AU  - Lal, Brij
TI  - A Textbook of Optics 
U1  - 535 
PY  - 1985///
CY  - New Delhi : 
PB  - S Chand, 
KW  - Optics
N1  - NN
ER  -