TY  - BOOK
AU  - Subrhmanyam,N.
AU  - Lal, Brij
TI  - A textbook of optics
SN  - 8121904676
U1  - 535 22
PY  - 1966///
CY  - New Delhi
PB  - S Chand & Company
KW  - Optics
N1  - Includes index
ER  -