| 000 | 00467nam a2200181 4500 | ||
|---|---|---|---|
| 001 | 006778 | ||
| 003 | DLC | ||
| 008 | 141112s1990 ck r 000 u spa d | ||
| 020 | _a8475096093 | ||
| 041 | 0 | _aspa | |
| 082 |
_a373 _bL269d |
||
| 100 | 0 | _aLanford, Peter | |
| 245 | _aEl desarrollo del pensamiento conceptual en la escuela secundaria | ||
| 260 |
_aBuenos Aires : _bPaidos, _c1990 |
||
| 650 | _aAprendizaje - secundaria | ||
| 650 | _aEducacion | ||
| 942 |
_2ddc _cBK |
||
| 999 |
_c6771 _d6771 |
||