TY  - BOOK
AU  - Beard, Ruth M
TI  - An Outline of Piaget's Developmental Psychology,  
SN  - 0 7100 6344 X
U1  - 150  
PY  - 1971///
CY  - London
PB  - Routledge & Kegan
KW  - Psychology
N1  - Includes bibliography
ER  -