TY  - BOOK
AU  - Boyle,D.G.
TI  - A students' guide to Piaget
T2  - The Commonwealth and international library. Psychology division
SN  - 0080064078
AV  - BF721 .B67 1969
U1  - 155.41/3/0924 
PY  - 1969///]
CY  - Oxford, New York
PB  - Pergamon Press
KW  - Piaget, Jean,
KW  - Child psychology
KW  - Local
N1  - Bibliography: p. 148-150
ER  -