| 000 | 00350nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 230917s9999||||xx |||||||||||||| ||und|| | ||
| 040 |
_e101261 _aMAIN |
||
| 041 | _aEnglish | ||
| 082 | _a371.3028 A38E | ||
| 100 | _aAggarwal, D D | ||
| 245 | 0 | _aEducational technology | |
| 260 |
_aNew Delhi _bSarup & Sons _c2004 |
||
| 300 | _a267 p. | ||
| 942 | _cBK | ||
| 999 |
_c118915 _d118915 |
||