TY  - GEN
AU  - Butterworth, George          
AU  - Harris, Margaret,
TI  - Principles of developmental psychology
SN  - 0863772803 (pbk) :
SN  - 09659706 
U1  - 155.09 20 
PY  - 1994///
CY  - Hove
PB  - Lawrence Erlbaum, 
KW  - Developmental psychology History
N1  - includes bibliographical references and index
ER  -