TY  - BOOK
AU  - Longhurst, R. S.
TI  - Geometrical and physical optics
U1  - 535 
PY  - 1973///
CY  - New Delhi
PB  - Orient Longman
KW  - Optics,Geometrical
KW  - Optics,Physical
KW  - Physical Optics
KW  - Geometrical Optics
ER  -