| 000 | 00504nam a2200157Ia 4500 | ||
|---|---|---|---|
| 003 | LDD | ||
| 008 | 181029s9999 xx 000 0 und d | ||
| 020 | _a9231011901 | ||
| 040 | _cLDD | ||
| 111 | _aProceedings of the ICSU Conference "The | ||
| 245 | 0 |
_aNew trends in integrated science teaching _beducation teachers _bproceedings of the ty" helt at the Un _cProceedings of the ICSU Conference "The |
|
| 260 |
_aParis _bUnesco _c1974 |
||
| 300 | _ax, 227p.; | ||
| 901 |
_a1306 _b12-03-1998 |
||
| 942 |
_2ddc _cBK |
||
| 999 |
_c23027 _d23027 |
||