TY  - BOOK
AU  - Voyat, Gilbert
TI  - Piaget systematized
SN  - 9780898590265
SN  - 81017283
U1  - 155.4130924 VOY 
PY  - 1982///
CY  - Hillsdale, N.J
PB  - L. Erlbaum Associates
KW  - Child Development
KW  - Cognition in children
KW  - Piaget, Jean, 1896-1980
N1  - Includes index. Bibliography: p. 201
ER  -