TY  - BOOK
AU  - Sears, Francis Weston
TI  - Optics 
T2  - Principles of physics series
AV  - QC355 .S43
PY  - 1949///
CY  - London
PB  - Addison-Wesley Publishing Co., Inc.
KW  - Physics
KW  - Optics
N1  - Includes Indexes
ER  -