TY  - BOOK
AU  - Sears,Pauline S.
TI  - Intellectual development
SN  - 0471769754 :
U1  - 151 
PY  - 1971///
CY  - New York
PB  - John Wiley
KW  - Cognition in children
KW  - Intellect
KW  - Problem solving
KW  - Children
KW  - Language
N1  - Includes index
ER  -