TY  - BOOK
AU  - Subrahmanyam, N; Brij Lal
TI  - Textbook of optics
U1  - SUB-T13 
PY  - 1983///
CY  -  New Delhi
PB  - S Chand & Company Pvt. Ltd.
KW  - Light & paraphotic phenomena (Optics); Physics
ER  -