TY  - BOOK
ED  - Davidson Films.
TI  - Piaget's developmental theory: an overview [videorecording] 
AV  - LB1117  .P524 1989
PY  - 1989///
CY  - San Luis Obispo, CA.
PB  - Davidson Films, Incorporated
KW  - Child psychology
KW  - Learning, Psychology of
KW  - Genetic epistemology
KW  - Cognition in children
ER  -