TY  - BOOK
AU  - AVADHANULU, M.N. : Revisor
AU  - BRIJLAL
AU  - SUBRAHMANYAM N
TI  - A TEXTBOOK OF OPTICS
SN  - 8121926114
U1  - 535 
PY  - 2010///
CY  - Delhi
PB  - Chand and Company 
ER  -