| 000 | 00692nam a2200217 a 4500 | ||
|---|---|---|---|
| 005 | 20210219160455.0 | ||
| 008 | 081109s1984 mx r 000 0 spa d | ||
| 020 | _a9231022342 | ||
| 035 | _aUPN01000166268 | ||
| 049 | _aUNE | ||
| 080 | _a371.68 =20 CRI No. 48. | ||
| 245 | 0 | 0 | _aTechnical and economic criteria for media selection and planning in educational institutions. |
| 260 |
_aParis : _bUNESCO, _c1984. |
||
| 300 |
_a81 p. ; _bfot. |
||
| 440 | 0 |
_aEducational series and documents; new series ; _v48. |
|
| 690 | _aEnseñanza por multimedios | ||
| 690 | _aMaterial y equipo didáctico | ||
| 690 | _aTecnología educacional | ||
| 690 | _aAyudas audiovisuales | ||
| 905 | _aUNESCO | ||
| 999 |
_c138380 _d138380 |
||