| 000 | 00511nam a2200169Ia 4500 | ||
|---|---|---|---|
| 008 | 170101s1984 xx 000 0 und d | ||
| 082 | _a371.3 U-4T | ||
| 100 | _aUnesco | ||
| 245 | 0 | _aTechnical and economic criteria for media selection and planning in educational institutions | |
| 260 | _c1984 | ||
| 300 | _a79p | ||
| 440 | _aEducational studies and documents, no.48 | ||
| 650 | _aINSTRUCTIONAL MATERIALS | ||
| 653 | _aCOMMUNICATION IN EDUCATION | ||
| 653 | _aINSTRUCTIONAL MATERIALS | ||
| 942 |
_2ddc _cB |
||
| 999 |
_c98471 _d98471 |
||