TY  - BOOK
AU  - Sigel,Irving E.
AU  - Cocking,Rodney R.
TI  - Cognitive development from childhood to adolescence: a costructivist perspective 
SN  - 003015636X
AV  - BF723 C5 S5.2
PY  - 1977///
CY  - New York
PB  - Holt, Rinehart and Winston
KW  - Conciencia (Psicología)
KW  - PERCEPCION
ER  -