| 000 | 00407nam a2200157Ia 4500 | ||
|---|---|---|---|
| 700 | _aGupat, K.B. | ||
| 700 | _aMathur, R.N. (Ed) | ||
| 100 | _aGupat, K.B. | ||
| 365 | _b21.8 | ||
| 942 | _cBK | ||
| 654 | _a | ||
| 245 | _aTeaching of science in secondary schools | ||
| 260 |
_aNew Delhi _bNational Council for Educational Research and Training _c1982 |
||
| 082 | _a375.5 | ||
| 300 |
_bHb _c24.1 _axii,250,2 |
||
| 999 |
_c413208 _d413208 |
||
| 041 | _aeng | ||