| 000 | 00372nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 170101s1974 xx 000 0 und d | ||
| 082 | _a155.413 D30C | ||
| 100 | _aDE BONNO, Edward | ||
| 245 | 0 | _aChildren solve problems | |
| 260 |
_bN.Y _c1974 |
||
| 300 | _a227p | ||
| 650 | _aPROBLEM SOLVING | ||
| 653 | _aCHILD STUDY | ||
| 653 | _aPROBLEM SOLVING | ||
| 942 |
_2ddc _cB |
||
| 999 |
_c63588 _d63588 |
||