TY  - GEN
AU  - PIAGET, Jean
ED  - PIAGET, J
ED  - INHELDER, B
TI  - The psychology of the child
AV  - BF 721 .P4813 
PY  - 1969///
CY  - New York
PB  - Basic Books
KW  - Child psychology
KW  - Child study
ER  -