| 000 | 00452nam a2200157Ia 4500 | ||
|---|---|---|---|
| 999 |
_c83254 _d83254 |
||
| 005 | 20220307154753.0 | ||
| 008 | 180710s9999 xx 000 0 und d | ||
| 020 | _a69389 | ||
| 082 |
_a371.3 _bUNI _223 |
||
| 100 | _aUNESCO | ||
| 245 | 4 |
_aThe economics of new educational media / _c[by] United Nations Educational Scientific and Cultural Orga |
|
| 260 |
_aParis _bUNESCO press _c1982 |
||
| 300 | _a147 p. | ||
| 650 | _aClassroom techniques | ||
| 942 | _cS | ||