TY  - BOOK
AU  - Inhelder,Bärbel
AU  - Piaget,Jean
AU  - Anne Parsons Tr
AU  -  Stanley Milgram Tr
TI  - Growth of logical thinking from childhood to adolescence: essay on the construction of formal operational structures 
U1  - 155.4 
PY  - 1958///
CY  - New York
PB  - Basic Books
KW  - Gernal psychology
KW  - Logic
KW  - Cognition in children
ER  -