TY  - BOOK
AU  - Silberstein,Ludwik
TI  - Simplified method of tracing rays through any optical system of lenses, prisms, and mirrors
AV  - QC383 .S5
PY  - 1918///
CY  - London, New York
PB  - Longmans, Green and Co.
KW  - Geometrical optics
KW  - Refraction
ER  -