TY  - BOOK
AU  - Subrahmanyam, N.
AU  - Brij Lal, M.N. Avadhanulu
TI  - A Textbook Of Optics
SN  - 9788121926119
U1  - 535SN 
PY  - 1966///
CY  - New Delhi
PB  - S Chand
KW  - PHYS
ER  -