| 000 | 00452nam a2200157Ia 4500 | ||
|---|---|---|---|
| 001 | 8257 | ||
| 008 | 170722s9999 xx 000 0 und d | ||
| 110 | _aUnesco | ||
| 245 |
_aSystems and policy : _bThe function of information in improving education in improving education systems / |
||
| 260 |
_aUnesco : _bGeneva , _c1977. |
||
| 300 |
_a82 p. _c24cms |
||
| 490 | _aIbdata series;77-4 | ||
| 653 | _aCommunication | ||
| 653 | _aEducation | ||
| 942 | _cGEN | ||
| 999 |
_c98086 _d98086 |
||