TY  - BOOK
AU  - Siegel,Linda S.
AU  - Brainerd,Charles J.
TI  - Alternatives to Piaget: critical essays on the theory 
SN  - 0126419507
U1  - 155.4 23
PY  - 1978///
CY  - New York
PB  - Academic Press
KW  - Piaget, Jean,
KW  - Cognition in children
N1  - Includes bibliographies and index
ER  -