AU  - Acharya,D.P..
TI  - Geometrical Optics For Advanced Students / 
SN  - 81 204 0247 2
U1  - 535.1 
PY  - 1980///
CY  - N.Delhi
PB  - Oxford & IBH Publishing co. Pvt Ltd , 
KW  - Physics
N1  - NULL
ER  -