| 000 | 00610nam a22002177a 4500 | ||
|---|---|---|---|
| 999 |
_c31605 _d31605 |
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| 003 | OSt | ||
| 005 | 20190907155617.0 | ||
| 008 | 190131b ||||| |||| 00| 0 eng d | ||
| 020 | _a92-3-101693-8 | ||
| 040 |
_aOSt _cOSt _dOSt |
||
| 082 | _a370.1934 / U2c | ||
| 110 |
_aUnesco. _966439 |
||
| 245 | _aThe economics of new educational media / | ||
| 260 |
_aParis : _bUnesco Pr., _cc 1980. |
||
| 300 |
_a316 p. ; _c24 cm. |
||
| 490 |
_aEducational methods and techniques, _v 1. |
||
| 505 | _aV. 2- Cost and effectiveness ; | ||
| 508 | _a322 | ||
| 650 |
_aEducational technology. _9249590 |
||
| 942 |
_2ddc _cBK |
||