| 000 | 00399nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 180710s9999 xx 000 0 und d | ||
| 020 | _a139470 | ||
| 082 |
_a539 _bOPE |
||
| 100 | _aOPEN Univeristy of SRi Lanka | ||
| 245 | _aFoundation science level 2-physics orioertues if nmatter PSF 2602, block 4 | ||
| 260 |
_aNugegoda _bThe Open Unvieristy of Sri Lanka _c1986 |
||
| 300 | _a117 p. | ||
| 942 | _cPR | ||
| 999 |
_c64223 _d64223 |
||