TY  - BOOK
AU  - Piaget,Jean
TI  - The child's conception of the world
SN  - 071003068 I
U1  - 372 PIA 
PY  - 1971///
CY  - London
PB  - Routledge and Kegan Paul
KW  - Elementary education-school
KW  - Elementary school-child
KW  - World-child
N1  - Includes index.
ER  -