| 000 | 00470 a2200253 4500 | ||
|---|---|---|---|
| 001 | 1011666 | ||
| 020 | _a2 | ||
| 041 | _aeng | ||
| 080 | _a5.08 UNE | ||
| 245 | _aUNESCO source book for science teaching | ||
| 250 | _a | ||
| 260 | _aParis | ||
| 260 | _bUnesco, | ||
| 260 | _c1956 | ||
| 300 | _a220 p. | ||
| 300 | _c23 cm | ||
| 490 | _a | ||
| 100 | _aUNESCO | ||
| 700 | _a | ||
| 650 | _a | ||
| 650 | _aScience-study and teaching | ||
| 942 | _cBK | ||
| 942 | _2UDC | ||
| 999 |
_c72558 _d72558 |
||