TY  - BOOK
AU  - WADSWORTH,Barry J.
TI  - Piaget's theory of cognitive development : an introduction for students of psychology and education 
SN  - 0582280141
AV  - BF723.C5 W33 1971
U1  - 155.41/3 22
PY  - 1971///
CY  - New York
PB  - McKay
KW  - Piaget, Jean,
KW  - Cognition in children
KW  - Cognition
KW  - Psychology, Child
KW  - fast
N1  - Includes bibliographical references  and index
ER  -