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_a507.2 _bBAI |
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| 100 |
_aBaez, Albert V. _9174558 |
||
| 245 |
_aInnovation in science education _bworld wide |
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_aParis: _bUnesco, _c1976. |
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| 300 | _a249p. | ||
| 546 | _aeng | ||
| 650 |
_aScience education-Research _9174559 |
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| 942 | _cBK | ||
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_c95188 _d95188 |
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