| 000 | 00346nam a2200145Ia 4500 | ||
|---|---|---|---|
| 700 | _aLeedham, J. F. | ||
| 100 | _aBajpai, A. C. | ||
| 020 | _a0 273 31410 6 | ||
| 942 | _cBK | ||
| 654 | _a | ||
| 245 | _aAspects of educational technology; Vol IV | ||
| 260 |
_aLondon _bPitman Publishing _c1970 |
||
| 082 | _a371.394 | ||
| 300 |
_c23.5cm _axvi,522 |
||
| 999 |
_c388149 _d388149 |
||
| 041 | _aeng | ||