| 000 | 00341nam a2200121Ia 4500 | ||
|---|---|---|---|
| 100 | _aNational Council of Educational Research and Training | ||
| 942 | _cBK | ||
| 654 | _a | ||
| 245 | _aProblem of large classes | ||
| 260 |
_aDelhi _bNational Council for Educational Research and Training _c1965 |
||
| 082 | _a371:251:371. 3 | ||
| 300 | _avi,53 | ||
| 999 |
_c406286 _d406286 |
||
| 041 | _aeng | ||