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| 020 | _a92-3-101190-1 | ||
| 082 | 0 | 0 | _a507. une |
| 100 | 1 |
_a"0, . " _93953 |
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| 245 | 1 | 0 |
_anew trend in intergrated science teaching vol.iii: _b/ _c .. |
| 250 | _a1 ed. | ||
| 260 |
_afrance : _bunesco _c1974. |
||
| 300 |
_a"viii, 227p.; _c27 cm." |
||
| 504 | _aincludes bibliography | ||
| 942 |
_2lcc _cBK |
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| 999 |
_c31839 _d31839 |
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