TY  - BOOK
AU  - Subrahmanyam, N; Brij Lal
TI  - Textbook of optics
U1  - 535 SUB-T9 22
PY  - 1977///
CY  - 
PB  - S Chand & Co. Ltd., New Delhi
KW  - Light & paraphotic phenomena (Optics); Physics
ER  -