| 000 | 00480nam a2200169Ia 4500 | ||
|---|---|---|---|
| 999 |
_c29041 _d29041 |
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| 005 | 20220112113938.0 | ||
| 008 | 180712s9999 xx 000 0 und d | ||
| 020 | _a9231014404 | ||
| 041 | _aEN | ||
| 082 |
_a507 _bUNE _223 |
||
| 100 | _aUNESCO | ||
| 245 | _aNew trends in integrated science teaching: evaluation of integrated science educ | ||
| 260 |
_aParis _bUnited Nations Educational, Scientific And Cultural _c1977 |
||
| 300 | _a(v.iv-199 p.) | ||
| 509 | _aNS | ||
| 942 | _cS | ||