TY  - BOOK
AU  - Sigel Irving E.
AU  -  Brodzinsky David M. Golinkoff Roberta M.
TI  - New directions in piagetian theory and practice
SN  - 0-89859-072-8
PY  - 1981///
CY  - Hillsdale
PB  - Lawrence Erlbaum Associates, Publishers
KW  - Child Psychology
ER  -