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_a507 _bBAE _223 |
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| 100 |
_aBAEZ, Albert V. _eaut |
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| 245 |
_aInnovation in science education-world-wide _c/[by] Albert V.Baez |
||
| 260 |
_aParis _bThe Unesco Press _c1976 |
||
| 300 | _a249 p. | ||
| 509 | _aNS | ||
| 942 | _cS | ||