TY  - GEN
AU  - Voneche, Jacques
TI  - Concepts, procedures, and structures in the acquisition of the concept of number
KW  - Psicologia Cognitiva
KW  - 2300 - Psicologia Experimental, Psicologia Cognitiva
UR  - https://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/r5.htm
ER  -