000 00662naa a2200169 4500
001 182840
090 _a182840
100 _a20040322 y0pory5003 ba
200 1 _aChildren's counting in arithmetical problem solving
_fLeslie Steffe, co-aut. Patrick Thompson, co-aut. John Richards
463 1 _eLawrence Erlbaum, 1982
_vNew York
_vp. 83-97
_tAddition and subtraction : a cognitive perspective
_015015
606 1 _aPsicologia Educacional
686 _a3500 - Psicologia Educacional
700 1 _aSteffe
_bLeslie
701 1 _aThompson
_bPatrick
701 1 _aRichards
_bJohn
856 4 _uhttps://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/e2.htm