TY  - BOOK
AU  - Subrahmanyam, N.
AU  - Lal, Brij
AU  - Avadhanulu, M.N
TI  - A text of Optics
SN  - 9788121926119
U1  - 535 S941t 1966 
PY  - 1966///
CY  - New Delhi
PB  - S.Chand & Company Ltd
N1  - Includes Index; Computer Science
ER  -