| 000 | 00322nam a2200121Ia 4500 | ||
|---|---|---|---|
| 100 | _aBhola, Harbans Singh | ||
| 942 | _cBK | ||
| 654 | _a | ||
| 245 | _aEffective Use of Display Material in Schools | ||
| 260 |
_aNew Delhi _bNational Council for Educational Research and Training _c1963 |
||
| 082 | _a371.335 | ||
| 300 | _a46 | ||
| 999 |
_c394723 _d394723 |
||
| 041 | _aeng | ||