TY  - BOOK
AU  - Sime,Mary
TI  - A child's eye view
AV  - LB775.S589.C455 1973 
PY  - 1973///
CY  - New York
PB  - Harper and Row
KW  - Piaget, Jean,
KW  - Mathematics
KW  - Study and teaching
KW  - Science
N1  - 4; Bibliography: pages 141-142; 2
ER  -