TY  - BOOK
AU  - Pidgeon,Douglas A.
ED  - National Foundation for Educational Research in England and Wales
TI  - Achievement in mathematics: national study of secondary schools 
U1  - 510.071242 23
PY  - 1967///.
CY  - Slough: 
PB  - National Foundation for Educational Research in England & Wales, 
KW  - Mathematics
KW  - Study and teaching
ER  -