TY  - BOOK
AU  - Sumner,R.
AU  - Warburton,F.W.
TI  - Achievement in secondary school: attitudes, personality and school success 
SN  - 901225762
AV  - LB1028 S9.2
PY  - 1972///
CY  - London
PB  - NFER
KW  - CONDUCTA ESTUDIANTIL
KW  - EDUCACION SECUNDARIA -
KW  - INVESTIGACION
ER  -