TY  - BOOK
AU  - Subrahmanyam N
AU  -  Avadhanulu M N
AU  -  Lal Brij
TI  - Textbook of optics
SN  - 8121926114 (pbk)
U1  - C5, K8;P6-;1 
PY  - 2006///
CY  - New Delhi
PB  - S Chand & Company Ltd  
KW  -  Optics
KW  -  Ray optics
KW  - Physics
ER  -