TY  - BOOK
AU  - Subrahmanyam .N
AU  - Brij Lal 
TI  - Atextbook of Optics 
SN  - 9788121904674
PY  - 1999///
CY  - New Delhi 
PB  - S.Chand &Company LTD
KW  - Physics
UR  - Physics 
ER  -