TY  - BOOK
ED  - CSMS Mathematics Team
TI  - Children's understanding of mathematics: 11-16
SN  - 071953772X
AV  - MATH QA11.C5 
PY  - 1981///
CY  - London
PB  - John Murray
KW  - Mathematics
KW  - Study and teaching (Secondary)
N1  - Bibliography: p.225-226
Includes index
ER  -