TY  - BOOK
AU  - Inhelder, Bärbel.
AU  - Piaget, Jean,
ED  - 
ED  - 
ED  - 
ED  - 
TI  - : an essay on the construction of formal operational structures 
SN  - 2
PY  - 1958///46
CY  - [New York]
PB  - Basic Books
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Logic.;Child psychology.;Cognition in children
N1  - 5
ER  -