| 000 | 01042cam a2200289 a 4500 | ||
|---|---|---|---|
| 001 | 3677023 | ||
| 005 | 20221004130233.0 | ||
| 008 | 771107m19771982fr b i000 0 eng | ||
| 010 | _a 77557780 | ||
| 020 | _a9231014234 (pbk. : v. 1) | ||
| 020 | _z9231016938 (pbk. : v. 2) | ||
| 040 |
_aDLC _cKNATCOM-UNESCO |
||
| 050 | 0 | 0 |
_aLB1028.3 _b.E27 |
| 082 | 0 | 0 |
_a371.3/07/8 _219 |
| 098 | _a1.60ECO | ||
| 245 | 0 | 4 |
_aThe Economics of new educational media / _cUNESCO. |
| 260 |
_aParis : _bUnesco, _c1977-1982. |
||
| 300 | _a200 p.: | ||
| 440 | 0 |
_aEducational methods and techniques ; _v1 |
|
| 500 | _a"Prepared with the assistance of the International Council for Educational Media." | ||
| 504 | _aIncludes bibliographies. | ||
| 505 | 0 | _av. 1. Present status of research and trends -- v. 2. Cost and effectiveness -- v. 3. Cost and effectiveness overview and synthesis. | |
| 650 | 0 | _aEducational technology. | |
| 710 | 2 | _aUnesco. | |
| 710 | 2 | _aInternational Council for Educational Media. | |
| 942 |
_2UNESCO _cBK _h1.60ECO _k1.60 _mECO _n0 |
||
| 999 |
_c1538 _d1538 |
||