| 000 | 00332nam a2200133Ia 4500 | ||
|---|---|---|---|
| 100 | _aWilliams, David L. & Herman, W.L. | ||
| 020 | _a- | ||
| 942 | _cBK | ||
| 245 | _aCurrent research in elementry school science | ||
| 260 |
_aNew York _bMacmillan & Co. _c1971 |
||
| 082 |
_a372.3 _bWil/Her |
||
| 300 | _axii,436 | ||
| 546 | _aEnglish | ||
| 999 |
_c331562 _d331562 |
||
| 041 | _aeng | ||