| 000 | 00533nam a2200169 a 4500 | ||
|---|---|---|---|
| 005 | 20210219160517.0 | ||
| 008 | 081109s1986 mx r 000 0 spa d | ||
| 020 | _a9634411290 | ||
| 035 | _aUPN01000167221 | ||
| 049 | _aUNE | ||
| 080 | _a371.68 =20 "1986" EDU. | ||
| 245 | 0 | 0 |
_aEducational applications of videotex systems : _binternational review study. |
| 260 |
_aHungary : _bHungarian National Commission for UNESCO, _c1986. |
||
| 300 |
_apág. irregular. ; _blamns. |
||
| 690 | _aEnseñanza por multimedios | ||
| 905 | _aUNESCO | ||
| 999 |
_c139332 _d139332 |
||