| 000 | 00467nam a22001697a 4500 | ||
|---|---|---|---|
| 999 |
_c8659 _d8659 |
||
| 020 | _a9231010581 | ||
| 082 | _a507 | ||
| 100 | _aUNESCO | ||
| 245 | _aNew Unesco Source Book for Science Teaching | ||
| 260 |
_aParis : _bUnited Nations , _c1973 . |
||
| 300 |
_a270 p . : _bill . : pictures ; 22 cm . |
||
| 500 | _aincludes index | ||
| 650 | _aScience--Experiments | ||
| 650 | _aScience--Study and teaching | ||
| 650 | _aGeography--Study and teaching | ||
| 942 | _cBK | ||