| 000 | 00354nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 180710s9999 xx 000 0 und d | ||
| 020 | _a139523 | ||
| 082 |
_a535.4 _bOPE |
||
| 100 | _aOPEN University of Sri Lanka | ||
| 245 | _aPhysics: diffraction block IB | ||
| 260 |
_aNugegoda _bThe Open University of Sri Lanka _c1989 |
||
| 300 | _a87 p. | ||
| 942 | _cR | ||
| 999 |
_c74436 _d74436 |
||