| 000 | 00356nam a2200121Ia 4500 | ||
|---|---|---|---|
| 001 | MPKV051601 | ||
| 008 | 120911s9999 xx 000 0 und d | ||
| 082 | _a370 | ||
| 245 |
_aJournal of Research in Science Teaching Vol 8 _c; |
||
| 246 | _aJournal of Research in Science Teaching Vol 8 | ||
| 260 |
_aNew York _bJohnWiley and Sons _c1971 |
||
| 650 | _aEducation | ||
| 999 |
_c49605 _d49605 |
||