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| 008 | 140520s9999||||xx |||||||||||||| ||und|| | ||
| 020 | _a92-3-101143-X | ||
| 082 | _a507 | ||
| 082 | _bUnesco | ||
| 245 | _aNew Trends In The Utilization Of Educational Technology For Science Education | ||
| 260 | _aParis | ||
| 260 | _bUnesco | ||
| 260 | _c1974 | ||
| 300 | _a248 | ||
| 300 | _bpb | ||
| 300 | _c8x10.5 | ||
| 350 | _a0 | ||
| 365 | _b63 | ||
| 365 | _dRuppes | ||
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