| 000 | 00347nam a2200133Ia 4500 | ||
|---|---|---|---|
| 020 | _a8120404114 | ||
| 082 |
_a507 _bNEW |
||
| 245 | _aNew Unesco source book for science teaching | ||
| 260 |
_aNew Delhi _bOxford & IBH Publishing Co. _c1973 |
||
| 300 | _bverious pages | ||
| 546 | _aeng | ||
| 650 |
_aScience-Study and teaching _914690 |
||
| 942 | _cBK | ||
| 999 |
_c20319 _d20319 |
||