| 000 | 00358nam a2200097 4500 | ||
|---|---|---|---|
| 245 |
_aHow children discover knowledge : theoritical and practical foudations of students investigations in science. _cNarendra Vaidya |
||
| 100 | _aVaidya , Narendra | ||
| 260 |
_aNew Delhi _bOxford & IBH Publishing _cc 1974 |
||
| 300 | _axv ,315p.; 22cm | ||
| 082 |
_a370.13 _b VAI |
||
| 999 |
_c19431 _d19431 |
||