TY  - BOOK
AU  - Inhelder,Barbel
AU  - Piaget,Jean
TI  - The early growth of logic in the child: classification and seriationby
SN  - 0710019491
PY  - 1964///
CY  - London
PB  - Routledge & Kegan Paul
KW  - Reasoning in children
KW  - Logic
ER  -