| 000 | 00375nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 180424s9999 xx 000 0 und d | ||
| 084 | _a607 U1:1 | ||
| 245 | 0 | _aUnesco Source Book for Science Teaching | |
| 250 | _a\\196900ENGGPSX | ||
| 260 | _aUnesco | ||
| 260 | _b1969 | ||
| 260 | _cParis | ||
| 300 | _a234 p | ||
| 500 | _aincludes index and biblioraphy | ||
| 942 | _cBK | ||
| 999 |
_c19531 _d19531 |
||