TY  - BOOK
AU  - Siegler, Robert S
ED  - Carnegie Symposium on Cognition (13th : 1977 : Carnegie-Mellon University)
TI  - Children's thinking : what develops?
SN  - 9780805808841
SN  - 78013119
U1  - 155.413 SIE 
PY  - 1978///
CY  - Hillsdale, N.J. ; New York
PB  - distributed by Halsted Press Division of Wiley, L. Erlbaum Associates
KW  - Cognition in children
N1  - An outgrowth of the 13th annual Carnegie Cognition Symposium, held in May 1977. Includes bibliographies and indexes
ER  -