000 00537naa a2200145 4500
001 190033
090 _a190033
100 _a20040322 y0pory5003 ba
200 1 _aAcquisition of addition and subtraction concepts
_fThomas Carpenter
463 1 _eAcademic Press, 1983
_vNew York
_vp. 7-44
_tAcquisition of mathematics concepts and processes
_017924
606 1 _aPsicologia Educacional
686 _a3500 - Psicologia Educacional
700 1 _aCarpenter
_bThomas
856 4 _uhttps://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/e2.htm