| 000 | 00390nam a2200145Ia 4500 | ||
|---|---|---|---|
| 020 | _a0-273-31410-6 | ||
| 082 |
_a371.3078 _bASP |
||
| 245 |
_aAspects of educational technology _cedited by A.C.Bajpai and J.F.Leedham |
||
| 260 |
_aLondon: _bPitman, _c1970. |
||
| 300 | _axvi,522p: ill. | ||
| 500 | _aHB | ||
| 546 | _aEng | ||
| 650 |
_aEducational technology-Congresses _922026 |
||
| 942 | _cBK | ||
| 999 |
_c22718 _d22718 |
||