TY  - BOOK
ED  - National Foundation for Educational Research in England and Wales
TI  - Achievement in mathematics: a national study of secondary schools 
PY  - 1967///
CY  - Slough
PB  - National Foundation for Educational Research in England and Wales
KW  - Mathematics
KW  - Study and teaching
KW  - United Kingdom
KW  - Statistics
KW  - Study and teaching (Secondary)
KW  - England
ER  -