TY  - GEN
AU  - Steffe, Leslie
AU  - Thompson, Patrick
AU  - Richards, John
TI  - Children's counting in arithmetical problem solving
KW  - Psicologia Educacional
KW  - 3500 - Psicologia Educacional
UR  - https://catalogo.ispa.pt/opac/biblioteca/localizacao_doc/e2.htm
ER  -