TY  - BOOK
AU  - Piaget,Jean
AU  - Duckworth,Eleanor
TI  - Genetic epistemology
SN  - 0231033869 :
U1  - 136.5 
PY  - 1970///
CY  - New York
PB  - Columbia University Press
KW  - Cognition in children
KW  - Genetic epistemology
N1  - Includes index; Translation from French
ER  -