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001 115978
090 _a115978
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200 1 _aPascual-leone's theory of constructive operators as an explanatory construct in cognitive development and science ...
_fMansoor Niaz
461 1 _aEducational Psychology
_vVol. 14, nÂș 1 (1994), p. 23-43
606 1 _aPsicologia e Educacao
686 _a3500 - Psicologia Educacional
700 1 _aNiaz
_bMansoor
856 4 _uhttps://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/r4.htm