TY  - BOOK
AU  - Longhurst,R.S.
TI  - Geometrical and physical optics
U1  - 535 
PY  - 1957///
CY  - London
PB  - Longmans
KW  - Optics
KW  - Geometrical optics
KW  - Physical optics
KW  - Diffraction gratings
ER  -