| 000 | 00681nam a2200169Ia 4500 | ||
|---|---|---|---|
| 008 | 190329s9999||||xx |||||||||||||| ||und|| | ||
| 040 |
_aNITIL _cNITIL |
||
| 082 |
_221st _a379 _bU58E |
||
| 110 | _aUnited Nations Educational Scientific and Cultural Organizat | ||
| 245 | 4 | _aThe Economics of new educational media | |
| 260 |
_aGeneva _bUNESCO _c1977-82 |
||
| 300 | _a3v (V.p) | ||
| 440 | _aEducational methods and techniques | ||
| 500 | _aContents: v.1. Present status of research and trends- v.2. Cost and effectiveness- v.3. Cost and effectiveness overview and synthesis | ||
| 650 | _aEducational-Costs; Education-Audio-Visual aids; Education-Simultation methods | ||
| 942 | _cBKS | ||
| 999 |
_c63019 _d63019 |
||