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_c19245 _d19245 |
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| 001 | 18859 | ||
| 003 | PK-LaUMT | ||
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| 020 | _a92-3-101423-4 | ||
| 040 | _cPK-LaUMT | ||
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_a 371.335 _bUNE-E |
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| 110 | _aUnesco | ||
| 245 | 4 |
_aThe economics of new educational media _cUnesco |
|
| 260 |
_aSwitzerlad: _bUNESCO, _c1977 |
||
| 300 | _a200 p. | ||
| 546 | _aEN | ||
| 942 |
_cSTK2002 _2ddc |
||