| 000 | 00306nam a2200121Ia 4500 | ||
|---|---|---|---|
| 100 | _aPiaget, Jean | ||
| 942 | _cBK | ||
| 654 | _a | ||
| 245 | _aChild 's conception of physical caulity | ||
| 260 |
_aLondon _bKegan Paul, Trench, Trubner & Company Limited _c1930 |
||
| 082 | _a155;4 | ||
| 300 |
_bHb _aviii, 309 |
||
| 999 |
_c347108 _d347108 |
||
| 041 | _aeng | ||