| 000 | 00469nam a2200193Ia 4500 | ||
|---|---|---|---|
| 008 | 140520s9999||||xx |||||||||||||| ||und|| | ||
| 020 | _a0-904421-07-4 | ||
| 082 | _a155.413 | ||
| 082 | _bArc | ||
| 245 | _aCognitive Development Research In Science And Mathematics | ||
| 260 | _aLeeds | ||
| 260 | _bCentre For Studies In Science | ||
| 260 | _c1979 | ||
| 300 | _a484 | ||
| 350 | _a0 | ||
| 365 | _b175.86 | ||
| 365 | _dRuppes | ||
| 700 | _aArchenhold, W. F. (ED) | ||
| 999 |
_c59937 _d59937 |
||