TY  - GEN
AU  - Rodrigues, Ana Maria Leitão B. P. M.
TI  - Conservation of number, seriation, and classification abilities of rural Portuguese children at first and second Years of primary school
PY  - 1984///
CY  - Boston
PB  - University School of Education
KW  - Matemática
KW  - Desenvolvimento curricular
KW  - 51"372"
ER  -