TY  - BOOK
AU  - Subhrahmanyam M
AU  - Brij Lal
TI  - Textbook of optics
SN  - 8121926114
U1  - 535 SUBT 
PY  - 2012///
CY  - New Delhi
PB  - S. Chand & Co. Ltd.
KW  - Physics
ER  -