TY  - BOOK
AU  - Acharya,D.P.
TI  - Geometrical optics for advanced students
U1  - 535.3 
PY  - 1970///
CY  - Calcutta
PB  - Oxford & IBH Pub.
KW  - Optics
KW  - Geometrical optics
N1  - Includes index
ER  -