| 000 | 00373nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 170101s1976 xx 000 0 und d | ||
| 082 | _a507 K11I | ||
| 100 | _aKALRA, R.M. | ||
| 245 | 0 | _aInnovations in science teaching | |
| 260 |
_bNew Delhi _c1976 |
||
| 300 | _a152p | ||
| 650 | _aSCIENCE -- STUDY & TEACHING | ||
| 653 | _aSCIENCE -- STUDY & TEACHING | ||
| 942 |
_2ddc _cB |
||
| 999 |
_c83824 _d83824 |
||