| 000 | 00363nam a2200145Ia 4500 | ||
|---|---|---|---|
| 001 | 97747 | ||
| 008 | 240126s9999||||xx |||||||||||||| ||und|| | ||
| 082 | _a370 ECO | ||
| 245 | 0 | _aEconomics of new educational media: cost and effectiveness | |
| 260 | _aFrance | ||
| 260 | _bScientific and Cultural Organisation | ||
| 260 | _c1980 | ||
| 300 | _a316p. | ||
| 942 | _cBK | ||
| 999 |
_c97747 _d97747 |
||