TY  - BOOK
AU  - Piaget,Jean
AU  - Inhelder,Bärbel
AU  - Szeminski,Alina
TI  - The child's conception of geometry ,
T2  - International library of psychology
SN  - 0415209994
U1  - 155.4 23
PY  - 1960///
CY  - London
PB  - Routledge
KW  - Geometry concept
KW  - Developmental psychology
KW  - Educational psychology
ER  -