| 000 | 00660 a2200229 4500 | ||
|---|---|---|---|
| 999 |
_c3090 _d3090 |
||
| 003 | ISURa | ||
| 008 | 170203b xxu||||| |||| 00| 0 eng d | ||
| 041 | _aEnglish | ||
| 082 |
_a535.32 _bPHA |
||
| 100 |
_aGunasinghe , R. M. _92067 |
||
| 245 |
_aPhysics _bgeometrical optics |
||
| 260 |
_c1986 _aNugegoda _bOpen university of Sri Lanka _g1986 |
||
| 300 |
_bill. _c28 cm. _a117 p. |
||
| 650 |
_aPHYSICS _9620 |
||
| 650 |
_aGEOMETRICAL OPTICS _930411 |
||
| 650 |
_aREFLECTION _930412 |
||
| 650 |
_aREFRACTION _930413 |
||
| 700 |
_aLiyanage , L. S. G. _92070 |
||
| 700 |
_aTennakoone, M. M. S. G .K _911218 |
||
| 700 |
_aDahanayaka, C. _918598 |
||
| 942 |
_cSR _2ddc |
||