TY  - BOOK
AU  - Pulaski,Mary Ann Spencer
TI  - Understanding Piaget: an introduction to children's cognitive development 
SN  - 0060134542
AV  - BF723.C5 P85 1980
U1  - BF 723.C5P85 1980 19
PY  - 1980///
CY  - New York
PB  - Harper & Row
KW  - Piaget, Jean,
KW  - Cognition in children
N1  - Includes index; Bibliography: p. [237]-242
ER  -