| 000 | 00387nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 190516s9999 xx 000 0 und d | ||
| 100 |
_aUnited Nations _94040 |
||
| 245 | 0 | _aScience Course Content and Teaching Apparatus | |
| 260 |
_bUnited Nations _c1946 _aUSA |
||
| 300 | _a186 | ||
| 600 |
_tPhysics _91741 |
||
| 650 |
_aPhysics _91741 |
||
| 942 | _cBK | ||
| 999 |
_c118678 _d118678 |
||