| 000 | 00555naa a2200145 4500 | ||
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| 001 | 157468 | ||
| 090 | _a157468 | ||
| 100 | _a20040322 y0pory5003 ba | ||
| 200 | 1 |
_aConceptual obstacles to the development of the concepts of multiplication and division _fBrian Greer |
|
| 463 | 1 |
_ePergamon Press, 1990 _vNew York _vp. 461-476 _tLearning and instruction. volume 2.2 _014581 |
|
| 606 | 1 | _aPsicologia Educacional | |
| 686 | _a3500 - Psicologia Educacional | ||
| 700 | 1 |
_aGreer _bBrian |
|
| 856 | 4 | _uhttps://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/e2.htm | |