TY  - BOOK
AU  - Piaget, Jean, (1896-1980)
AU  - Inhelder, Barbel
AU  - Weaver, Helen
AU  - The psychology of the child
TI  - The psychology of the child 
PY  - 1969///
CY  - New York 
PB  - Basic Books 
KW  - Child psychology
N1  - Includes index
ER  -