| 000 | 00378nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 240930s9999||||xx |||||||||||||| ||und|| | ||
| 020 | _a9231014234 | ||
| 082 |
_a371.33 _bUNE |
||
| 100 | _aUnesco | ||
| 245 | 4 | _aThe economics of new educational media | |
| 260 |
_aParis _bUnited nations educational, _c1977 |
||
| 300 |
_a200p.; _c24cm |
||
| 650 | _aTeaching aids | ||
| 942 | _cLM | ||
| 999 |
_c133649 _d133649 |
||